13513023537 has 32 divisors (see below), whose sum is σ = 19783800960. Its totient is φ = 8154224640.

The previous prime is 13513023467. The next prime is 13513023547. The reversal of 13513023537 is 73532031531.

It is not a de Polignac number, because 13513023537 - 2⁷ = 13513023409 is a prime.

It is a super-2 number, since 2×13513023537² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13513023498 and 13513023507.

It is not an unprimeable number, because it can be changed into a prime (13513023547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395962 + ... + 428732.

It is an arithmetic number, because the mean of its divisors is an integer number (618243780).

Almost surely, 2^13513023537 is an apocalyptic number.

It is an amenable number.

13513023537 is a deficient number, since it is larger than the sum of its proper divisors (6270777423).

13513023537 is a wasteful number, since it uses less digits than its factorization.

13513023537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32993.

The product of its (nonzero) digits is 28350, while the sum is 33.

The spelling of 13513023537 in words is "thirteen billion, five hundred thirteen million, twenty-three thousand, five hundred thirty-seven".