13621426676 has 48 divisors (see below), whose sum is σ = 28096474560. Its totient is φ = 5696593920.

The previous prime is 13621426661. The next prime is 13621426729. The reversal of 13621426676 is 67662412631.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 136820 + ... + 214388.

It is an arithmetic number, because the mean of its divisors is an integer number (585343220).

Almost surely, 2^13621426676 is an apocalyptic number.

It is an amenable number.

13621426676 is an abundant number, since it is smaller than the sum of its proper divisors (14475047884).

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

13621426676 is a wasteful number, since it uses less digits than its factorization.

13621426676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77904 (or 77902 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The spelling of 13621426676 in words is "thirteen billion, six hundred twenty-one million, four hundred twenty-six thousand, six hundred seventy-six".