13513610645 has 24 divisors (see below), whose sum is σ = 16630292736. Its totient is φ = 10541636448.

The previous prime is 13513610639. The next prime is 13513610653. The reversal of 13513610645 is 54601631531.

It is not a de Polignac number, because 13513610645 - 2³² = 9218643349 is a prime.

It is a super-3 number, since 3×13513610645³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9087092 + ... + 9088578.

It is an arithmetic number, because the mean of its divisors is an integer number (692928864).

Almost surely, 2^13513610645 is an apocalyptic number.

It is an amenable number.

13513610645 is a deficient number, since it is larger than the sum of its proper divisors (3116682091).

13513610645 is an equidigital number, since it uses as much as digits as its factorization.

13513610645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561 (or 2518 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 13513610645 in words is "thirteen billion, five hundred thirteen million, six hundred ten thousand, six hundred forty-five".