18655325979684 has 48 divisors (see below), whose sum is σ = 47213766202176. Its totient is φ = 5709903692800.

The previous prime is 18655325979683. The next prime is 18655325979707. The reversal of 18655325979684 is 48697952355681.

It is not an unprimeable number, because it can be changed into a prime (18655325979683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1115207202 + ... + 1115223929.

It is an arithmetic number, because the mean of its divisors is an integer number (983620129212).

Almost surely, 2^{18655325979684} is an apocalyptic number.

It is an amenable number.

18655325979684 is an abundant number, since it is smaller than the sum of its proper divisors (28558440222492).

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

18655325979684 is a wasteful number, since it uses less digits than its factorization.

18655325979684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230431196 (or 2230431194 counting only the distinct ones).

The product of its digits is 3919104000, while the sum is 78.

The spelling of 18655325979684 in words is "eighteen trillion, six hundred fifty-five billion, three hundred twenty-five million, nine hundred seventy-nine thousand, six hundred eighty-four".