Given the following context:

In the United States, Good Girl Gone Bad debuted at number two on the Billboard 200 chart, selling 162,000 copies in its first week. It became Rihanna's then-best start album entry. The next week, it fell to number seven with 81,000 copies sold. The re-issue sold 63,000 copies in the first week and helped Good Girl Gone Bad jump from number 124 to number seven on the US Billboard 200 in its 55th week. It was certified six-time platinum by the Recording Industry Association of America (RIAA); by November 2013, both Good Girl Gone Bad and the reissue had sold 2,800,000 copies in the United States alone. To date, it is her best-selling album in the country. The album debuted atop of the Canadian Albums Chart and became Rihanna's second number-one album in the country. It was certified quintuple platinum by Music Canada, denoting shipments of more than 500,000 copies.Good Girl Gone Bad debuted at number one on the UK Albums Chart with sales of 54,000 copies in its first week. It became her first album to top the chart, and stayed on the chart for 177 weeks. In 2011, the album peaked at number 16 on the UK R&B Albums Chart. It was certified sextuple platinum by the British Phonographic Industry (BPI) and sold over 1,904,347 copies in the country. It ended at number 10 on the UK 2007 year-end list and number six on the 2008 year-end list. As of March 2015, Good Girl Gone Bad is the 46th best-selling album of the millennium in the United Kingdom. In Ireland, Good Girl Gone Bad debuted at number three on the Irish Singles Chart on June 7, 2007. After four weeks on the chart, it reached the top. The album peaked at number one on the Swiss Hitparade chart and stayed on the chart for 91 weeks. In Australia, it peaked at number two and was certified triple platinum by the Australian Recording Industry Association (ARIA), denoting shipments of over 210,000 copies. The album had sold 9 million copies worldwide.Before its physical release, "Umbrella" achieved the biggest debut in the six-year history of the iTunes Store in...

answer the following question:

How many digital sales did the song that achieved the biggest debut in the six-year history of the iTunes Store have in its first week? 

277,000