How Do You Write 1 Billion In Figures?

1,000,000,000 is generally excepted in the English language and when calculated financesthough sometimes in English and other languages it is taken as 1,000,000,000,000basically it is either 1 thousand million or 1 million millionyou are safest using 1,000,000,000 as more will accept it and because I highly doubt you are an advanced mathematicianhope that helps