18379680264 has 72 divisors (see below), whose sum is σ = 54715017630. Its totient is φ = 5569597440.

The previous prime is 18379680227. The next prime is 18379680283. The reversal of 18379680264 is 46208697381.

18379680264 is a `hidden beast` number, since 1 + 8 + 379 + 6 + 8 + 0 + 264 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16785275364 + 1594404900 = 129558^2 + 39930^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×18379680264² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18379680264.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1046137 + ... + 1063560.

Almost surely, 2^18379680264 is an apocalyptic number.

It is an amenable number.

18379680264 is an abundant number, since it is smaller than the sum of its proper divisors (36335337366).

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

18379680264 is a wasteful number, since it uses less digits than its factorization.

18379680264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109731 (or 2109713 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 18379680264 in words is "eighteen billion, three hundred seventy-nine million, six hundred eighty thousand, two hundred sixty-four".