2000000000 (number)

2000000000 was a number.

According to the Eleventh Doctor, Apalapucia was two billion light-years from Earth. (TV: The Girl Who Waited)

During his ordeal in the confession dial, a copy of the Twelfth Doctor believed that he had travelled two billion years into the future. (TV: Heaven Sent)

Over 2000000000 people, (PROSE: Alien Life) around one-third of the population of humanity, were controlled by the Sycorax's blood control. (TV: The Christmas Invasion)