10000000000 (number)

10000000000 was a number.

At some point in the 21st century, Earth had a population of ten billion people. (TV: Colony in Space)

In 2472, the Third Doctor noted that the Sun would explode in "ten thousand million years time". (TV; Colony in Space)

The Great Intelligence referred to the Eleventh Doctor as the "slaughterer of the ten billion". (TV: The Name of the Doctor)

At the time that the Seventh Doctor visited Kirith, the universe had ten billion years before its end. (PROSE: Timewyrm: Apocalypse)