13213790544 has 40 divisors (see below), whose sum is σ = 34230755520. Its totient is φ = 4392322048.

The previous prime is 13213790533. The next prime is 13213790581. The reversal of 13213790544 is 44509731231.

It is a congruent 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, 366177 + ... + 400640.

It is an arithmetic number, because the mean of its divisors is an integer number (855768888).

Almost surely, 2^13213790544 is an apocalyptic number.

It is an amenable number.

13213790544 is an abundant number, since it is smaller than the sum of its proper divisors (21016964976).

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

13213790544 is a wasteful number, since it uses less digits than its factorization.

13213790544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767187 (or 767181 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 13213790544 in words is "thirteen billion, two hundred thirteen million, seven hundred ninety thousand, five hundred forty-four".