13423632564 has 48 divisors (see below), whose sum is σ = 31974243840. Its totient is φ = 4381918560.

The previous prime is 13423632559. The next prime is 13423632571. The reversal of 13423632564 is 46523632431.

It is a super-2 number, since 2×13423632564² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150159 + ... + 222249.

It is an arithmetic number, because the mean of its divisors is an integer number (666130080).

Almost surely, 2^13423632564 is an apocalyptic number.

It is an amenable number.

13423632564 is an abundant number, since it is smaller than the sum of its proper divisors (18550611276).

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

13423632564 is a wasteful number, since it uses less digits than its factorization.

13423632564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72420 (or 72418 counting only the distinct ones).

The product of its digits is 311040, while the sum is 39.

The spelling of 13423632564 in words is "thirteen billion, four hundred twenty-three million, six hundred thirty-two thousand, five hundred sixty-four".