18889056604 has 24 divisors (see below), whose sum is σ = 36198062208. Its totient is φ = 8553283440.

The previous prime is 18889056569. The next prime is 18889056607. The reversal of 18889056604 is 40665098881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18889056607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804582 + ... + 827725.

It is an arithmetic number, because the mean of its divisors is an integer number (1508252592).

Almost surely, 2^18889056604 is an apocalyptic number.

It is an amenable number.

18889056604 is a deficient number, since it is larger than the sum of its proper divisors (17309005604).

18889056604 is a wasteful number, since it uses less digits than its factorization.

18889056604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632585 (or 1632583 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 18889056604 in words is "eighteen billion, eight hundred eighty-nine million, fifty-six thousand, six hundred four".