12976707618 has 24 divisors (see below), whose sum is σ = 32132800128. Its totient is φ = 3707630712.

The previous prime is 12976707607. The next prime is 12976707619. The reversal of 12976707618 is 81670767921.

12976707618 is a `hidden beast` number, since 12 + 9 + 7 + 6 + 7 + 0 + 7 + 618 = 666.

It is not an unprimeable number, because it can be changed into a prime (12976707619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51494746 + ... + 51494997.

It is an arithmetic number, because the mean of its divisors is an integer number (1338866672).

Almost surely, 2^12976707618 is an apocalyptic number.

12976707618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12976707618 is an abundant number, since it is smaller than the sum of its proper divisors (19156092510).

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

12976707618 is a wasteful number, since it uses less digits than its factorization.

12976707618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102989758 (or 102989755 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 12976707618 in words is "twelve billion, nine hundred seventy-six million, seven hundred seven thousand, six hundred eighteen".