13057567728 has 40 divisors (see below), whose sum is σ = 35198663808. Its totient is φ = 4163282112.

The previous prime is 13057567727. The next prime is 13057567729. The reversal of 13057567728 is 82776575031.

It is an interprime number because it is at equal distance from previous prime (13057567727) and next prime (13057567729).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13057567727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5912650 + ... + 5914857.

Almost surely, 2^13057567728 is an apocalyptic number.

It is an amenable number.

13057567728 is an abundant number, since it is smaller than the sum of its proper divisors (22141096080).

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

13057567728 is a wasteful number, since it uses less digits than its factorization.

13057567728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11827541 (or 11827535 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 13057567728 in words is "thirteen billion, fifty-seven million, five hundred sixty-seven thousand, seven hundred twenty-eight".