13256445832 has 64 divisors (see below), whose sum is σ = 28672185600. Its totient is φ = 5628441600.

The previous prime is 13256445779. The next prime is 13256445859. The reversal of 13256445832 is 23854465231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3456588 + ... + 3460420.

It is an arithmetic number, because the mean of its divisors is an integer number (448002900).

Almost surely, 2^13256445832 is an apocalyptic number.

It is an amenable number.

13256445832 is an abundant number, since it is smaller than the sum of its proper divisors (15415739768).

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

13256445832 is a wasteful number, since it uses less digits than its factorization.

13256445832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406 (or 4402 counting only the distinct ones).

The product of its digits is 691200, while the sum is 43.

The spelling of 13256445832 in words is "thirteen billion, two hundred fifty-six million, four hundred forty-five thousand, eight hundred thirty-two".