13623653634 has 16 divisors (see below), whose sum is σ = 27306417600. Its totient is φ = 4531366160.

The previous prime is 13623653627. The next prime is 13623653651. The reversal of 13623653634 is 43635632631.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2459934 + ... + 2465465.

It is an arithmetic number, because the mean of its divisors is an integer number (1706651100).

Almost surely, 2^13623653634 is an apocalyptic number.

13623653634 is an abundant number, since it is smaller than the sum of its proper divisors (13682763966).

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

13623653634 is a wasteful number, since it uses less digits than its factorization.

13623653634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925865.

The product of its digits is 699840, while the sum is 42.

The spelling of 13623653634 in words is "thirteen billion, six hundred twenty-three million, six hundred fifty-three thousand, six hundred thirty-four".