12575477808 has 30 divisors (see below), whose sum is σ = 35193872324. Its totient is φ = 4191825888.

The previous prime is 12575477773. The next prime is 12575477819. The reversal of 12575477808 is 80877457521.

12575477808 is a `hidden beast` number, since 1 + 25 + 7 + 547 + 78 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43664710 + ... + 43664997.

Almost surely, 2^12575477808 is an apocalyptic number.

12575477808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12575477808 is an abundant number, since it is smaller than the sum of its proper divisors (22618394516).

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

12575477808 is a wasteful number, since it uses less digits than its factorization.

12575477808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87329721 (or 87329712 counting only the distinct ones).

The product of its (nonzero) digits is 4390400, while the sum is 54.

The spelling of 12575477808 in words is "twelve billion, five hundred seventy-five million, four hundred seventy-seven thousand, eight hundred eight".