18856369952 has 48 divisors (see below), whose sum is σ = 42436094400. Its totient is φ = 8079537408.

The previous prime is 18856369951. The next prime is 18856369957. The reversal of 18856369952 is 25996365881.

It is not an unprimeable number, because it can be changed into a prime (18856369951) 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, 1943738 + ... + 1953414.

It is an arithmetic number, because the mean of its divisors is an integer number (884085300).

Almost surely, 2^18856369952 is an apocalyptic number.

It is an amenable number.

18856369952 is an abundant number, since it is smaller than the sum of its proper divisors (23579724448).

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

18856369952 is an equidigital number, since it uses as much as digits as its factorization.

18856369952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18393 (or 18385 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 62.

The spelling of 18856369952 in words is "eighteen billion, eight hundred fifty-six million, three hundred sixty-nine thousand, nine hundred fifty-two".