18870287604 has 24 divisors (see below), whose sum is σ = 50320767168. Its totient is φ = 5391510720.

The previous prime is 18870287581. The next prime is 18870287621. The reversal of 18870287604 is 40678207881.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 112323057 + ... + 112323224.

It is an arithmetic number, because the mean of its divisors is an integer number (2096698632).

Almost surely, 2^18870287604 is an apocalyptic number.

18870287604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18870287604 is an abundant number, since it is smaller than the sum of its proper divisors (31450479564).

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

18870287604 is a wasteful number, since it uses less digits than its factorization.

18870287604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224646295 (or 224646293 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 51.

The spelling of 18870287604 in words is "eighteen billion, eight hundred seventy million, two hundred eighty-seven thousand, six hundred four".