18857880976 has 45 divisors (see below), whose sum is σ = 40173534849. Its totient is φ = 8569017600.

The previous prime is 18857880961. The next prime is 18857881019. The reversal of 18857880976 is 67908875881.

The square root of 18857880976 is 137324.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12082576 + 18845798400 = 3476^2 + 137280^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6040696 + ... + 6043816.

Almost surely, 2^18857880976 is an apocalyptic number.

18857880976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18857880976 is the 137324-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18857880976

18857880976 is an abundant number, since it is smaller than the sum of its proper divisors (21315653873).

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

18857880976 is an frugal number, since it uses more digits than its factorization.

18857880976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6272 (or 3134 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 67.

The spelling of 18857880976 in words is "eighteen billion, eight hundred fifty-seven million, eight hundred eighty thousand, nine hundred seventy-six".