Is Billion B Or BN?

Is Billion B Or BN? 1,000,000,000 (one billion, short scale; one thousand million or milliard, yard, long scale) is the natural number following 999,999,999 and preceding 1,000,000,001. One billion can also be written as b or bn. What is the correct abbreviation for billion? Number US Other thousand K thsnd(.), M million M or MM