18787975160 has 32 divisors (see below), whose sum is σ = 42277606560. Its totient is φ = 7514361216.

The previous prime is 18787975147. The next prime is 18787975207. The reversal of 18787975160 is 6157978781.

It is a super-2 number, since 2×18787975160² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18787975160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448637 + ... + 488723.

It is an arithmetic number, because the mean of its divisors is an integer number (1321175205).

Almost surely, 2^18787975160 is an apocalyptic number.

18787975160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18787975160 is an abundant number, since it is smaller than the sum of its proper divisors (23489631400).

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

18787975160 is a wasteful number, since it uses less digits than its factorization.

18787975160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51815 (or 51811 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 59.

The spelling of 18787975160 in words is "eighteen billion, seven hundred eighty-seven million, nine hundred seventy-five thousand, one hundred sixty".