Either: $58B $58 Billion $58,000,000,000
Expressed in words, 4.6 billion would be written "four billion, six hundred million".
thirty five billion
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.
58 is an integer and there is no sensible way of writing it as a fraction in words.
One billion, two hundred sixty million.
twenty-two billion, one hundred million.
One billion two hundred seventy million.
Twenty-nine billion, three-hundred million
In words, 85,000,000,000 is eighty-five billion