18895064976 has 120 divisors (see below), whose sum is σ = 55760563040. Its totient is φ = 5956416000.

The previous prime is 18895064971. The next prime is 18895065019. The reversal of 18895064976 is 67946059881.

18895064976 is a `hidden beast` number, since 1 + 8 + 89 + 506 + 49 + 7 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (18895064971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1638591 + ... + 1650081.

Almost surely, 2^18895064976 is an apocalyptic number.

18895064976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18895064976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27880281520).

18895064976 is an abundant number, since it is smaller than the sum of its proper divisors (36865498064).

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

18895064976 is a wasteful number, since it uses less digits than its factorization.

18895064976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12125 (or 12116 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 18895064976 in words is "eighteen billion, eight hundred ninety-five million, sixty-four thousand, nine hundred seventy-six".