1027000000000000000000000000 (number)
From Tardis Wiki, the free Doctor Who reference
1027000000000000000000000000 was a number.
The orientation material given to visitors to the City of the Saved estimated its population was between 1024 and 1027 septillion, but the City census of AF 291 reported it was closer to 1038 septillion. (PROSE: Of the City of the Saved... [+]Loading...["Of the City of the Saved... (novel)"])
