18976827888 has 30 divisors (see below), whose sum is σ = 53108761784. Its totient is φ = 6325609248.

The previous prime is 18976827851. The next prime is 18976827899. The reversal of 18976827888 is 88872867981.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65891620 + ... + 65891907.

Almost surely, 2^18976827888 is an apocalyptic number.

18976827888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18976827888 is an abundant number, since it is smaller than the sum of its proper divisors (34131933896).

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

18976827888 is a wasteful number, since it uses less digits than its factorization.

18976827888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131783541 (or 131783532 counting only the distinct ones).

The product of its digits is 173408256, while the sum is 72.

The spelling of 18976827888 in words is "eighteen billion, nine hundred seventy-six million, eight hundred twenty-seven thousand, eight hundred eighty-eight".