18862620616 has 64 divisors (see below), whose sum is σ = 40759879680. Its totient is φ = 8016261120.

The previous prime is 18862620607. The next prime is 18862620631. The reversal of 18862620616 is 61602626881.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3601936 + ... + 3607168.

It is an arithmetic number, because the mean of its divisors is an integer number (636873120).

Almost surely, 2^18862620616 is an apocalyptic number.

It is an amenable number.

18862620616 is an abundant number, since it is smaller than the sum of its proper divisors (21897259064).

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

18862620616 is a wasteful number, since it uses less digits than its factorization.

18862620616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5774 (or 5770 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 18862620616 in words is "eighteen billion, eight hundred sixty-two million, six hundred twenty thousand, six hundred sixteen".