thirty five billion
Expressed in words, 4.6 billion would be written "four billion, six hundred million".
Seven billion, six hundred million.
Forty-three billion (43,000,000,000).
One billion, two hundred million.
Two billion, five hundred million.
Eight billion eighty six million.
One billion, two hundred sixty million.
twenty-two billion, one hundred million.
One billion two hundred seventy million.
Nine billion six.
Thirtytwo and a half billion.