12009250956 has 24 divisors (see below), whose sum is σ = 28336437360. Its totient is φ = 3958104832.

The previous prime is 12009250943. The next prime is 12009250961. The reversal of 12009250956 is 65905290021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5621241 + ... + 5623376.

It is an arithmetic number, because the mean of its divisors is an integer number (1180684890).

Almost surely, 2^12009250956 is an apocalyptic number.

It is an amenable number.

12009250956 is an abundant number, since it is smaller than the sum of its proper divisors (16327186404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12009250956 is a wasteful number, since it uses less digits than its factorization.

12009250956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11244713 (or 11244711 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The spelling of 12009250956 in words is "twelve billion, nine million, two hundred fifty thousand, nine hundred fifty-six".