How many zeroes are there in one billion?
The number 1 billion has 9 zeroes. Written in numerical notation, 1 billion is equivalent to 1,000,000,000. Ã‚ It is also sometimes called one thousand million and is written in scientific notation as 1Ãƒâ€”109 or just 109. The word billion comes from the French word byllion which referred to ‘Ëœtwo’â„¢ + (m)illion and later altered into ‘Ëœa thousand million’â„¢.