13157320684 has 12 divisors (see below), whose sum is σ = 23035731264. Its totient is φ = 6575683184.

The previous prime is 13157320681. The next prime is 13157320703. The reversal of 13157320684 is 48602375131.

13157320684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13157320684² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13157320681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734332 + ... + 752035.

It is an arithmetic number, because the mean of its divisors is an integer number (1919644272).

Almost surely, 2^13157320684 is an apocalyptic number.

It is an amenable number.

13157320684 is a deficient number, since it is larger than the sum of its proper divisors (9878410580).

13157320684 is a wasteful number, since it uses less digits than its factorization.

13157320684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488584 (or 1488582 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 13157320684 in words is "thirteen billion, one hundred fifty-seven million, three hundred twenty thousand, six hundred eighty-four".