18876344976 has 60 divisors (see below), whose sum is σ = 54784135952. Its totient is φ = 6292113696.

The previous prime is 18876344959. The next prime is 18876344983. The reversal of 18876344976 is 67944367881.

18876344976 is a `hidden beast` number, since 1 + 8 + 87 + 63 + 4 + 497 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2423626 + ... + 2431401.

Almost surely, 2^18876344976 is an apocalyptic number.

18876344976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18876344976 is an abundant number, since it is smaller than the sum of its proper divisors (35907790976).

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

18876344976 is an equidigital number, since it uses as much as digits as its factorization.

18876344976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855050 (or 4855032 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 18876344976 in words is "eighteen billion, eight hundred seventy-six million, three hundred forty-four thousand, nine hundred seventy-six".