18378322676 has 12 divisors (see below), whose sum is σ = 36756645408. Its totient is φ = 7876423992.

The previous prime is 18378322663. The next prime is 18378322681. The reversal of 18378322676 is 67622387381.

18378322676 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328184306 + ... + 328184361.

It is an arithmetic number, because the mean of its divisors is an integer number (3063053784).

Almost surely, 2^18378322676 is an apocalyptic number.

It is an amenable number.

18378322676 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18378322676 is a wasteful number, since it uses less digits than its factorization.

18378322676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656368678 (or 656368676 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 53.

The spelling of 18378322676 in words is "eighteen billion, three hundred seventy-eight million, three hundred twenty-two thousand, six hundred seventy-six".