13088857513 has 4 divisors (see below), whose sum is σ = 13098919428. Its totient is φ = 13078795600.

The previous prime is 13088857487. The next prime is 13088857517. The reversal of 13088857513 is 31575888031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2074984704 + 11013872809 = 45552^2 + 104947^2 .

It is a cyclic number.

It is not a de Polignac number, because 13088857513 - 2²⁵ = 13055303081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13088857517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5029006 + ... + 5031607.

It is an arithmetic number, because the mean of its divisors is an integer number (3274729857).

Almost surely, 2^13088857513 is an apocalyptic number.

It is an amenable number.

13088857513 is a deficient number, since it is larger than the sum of its proper divisors (10061915).

13088857513 is a wasteful number, since it uses less digits than its factorization.

13088857513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061914.

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 13088857513 in words is "thirteen billion, eighty-eight million, eight hundred fifty-seven thousand, five hundred thirteen".