13257575764 has 6 divisors (see below), whose sum is σ = 23200757594. Its totient is φ = 6628787880.

The previous prime is 13257575743. The next prime is 13257575801. The reversal of 13257575764 is 46757575231.

It can be written as a sum of positive squares in only one way, i.e., 9236747664 + 4020828100 = 96108^2 + 63410^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1657196967 + ... + 1657196974.

Almost surely, 2^13257575764 is an apocalyptic number.

It is an amenable number.

13257575764 is a deficient number, since it is larger than the sum of its proper divisors (9943181830).

13257575764 is a wasteful number, since it uses less digits than its factorization.

13257575764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314393945 (or 3314393943 counting only the distinct ones).

The product of its digits is 6174000, while the sum is 52.

The spelling of 13257575764 in words is "thirteen billion, two hundred fifty-seven million, five hundred seventy-five thousand, seven hundred sixty-four".