Almost surely, 213261957208409 is an apocalyptic number.
13261957208409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
It is an amenable number.
13261957208409 is a wasteful number, since it uses less digits than its factorization.
13261957208409 is an evil number, because the sum of its binary digits is even.
The spelling of 13261957208409 in words is "thirteen trillion, two hundred sixty-one billion, nine hundred fifty-seven million, two hundred eight thousand, four hundred nine".