13401626634 has 32 divisors (see below), whose sum is σ = 32488793280. Its totient is φ = 4061098800.

The previous prime is 13401626633. The next prime is 13401626639. The reversal of 13401626634 is 43662610431.

13401626634 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 16 + 2 + 6 + 634 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13401626633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11280237 + ... + 11281424.

It is an arithmetic number, because the mean of its divisors is an integer number (1015274790).

Almost surely, 2^13401626634 is an apocalyptic number.

13401626634 is an abundant number, since it is smaller than the sum of its proper divisors (19087166646).

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

13401626634 is a wasteful number, since it uses less digits than its factorization.

13401626634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22561683 (or 22561677 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 13401626634 in words is "thirteen billion, four hundred one million, six hundred twenty-six thousand, six hundred thirty-four".