Seven.
you read a ruler by conting the little lines first
uta
38 = thirty-eight
Eight hundred seventy-five million.
Eight hundred million
1,800,000,000,000,000 One quadrillion eight trillion
Ninety Eight Million, Twenty four thousand, eight hundred and eleven.
Eight hundred million = 800,000,000
Nine million, six hundred seventy-eight thousand, eighty-eight.
Two billion, eight hundred seventy million.
Eight hundred sixty thousand, four hundred ninety.
One hundred thirty trillion, eight hundred billion.