12808565904 has 40 divisors (see below), whose sum is σ = 33094256832. Its totient is φ = 4268817280.

The previous prime is 12808565863. The next prime is 12808565921. The reversal of 12808565904 is 40956580821.

It is a super-2 number, since 2×12808565904² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 329749 + ... + 366539.

Almost surely, 2^12808565904 is an apocalyptic number.

It is an amenable number.

12808565904 is an abundant number, since it is smaller than the sum of its proper divisors (20285690928).

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

12808565904 is a wasteful number, since it uses less digits than its factorization.

12808565904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44055 (or 44049 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 12808565904 in words is "twelve billion, eight hundred eight million, five hundred sixty-five thousand, nine hundred four".