18928892976 has 80 divisors (see below), whose sum is σ = 55992678144. Its totient is φ = 5397864192.

The previous prime is 18928892953. The next prime is 18928892987. The reversal of 18928892976 is 67929882981.

It is a self number, because there is not a number n which added to its sum of digits gives 18928892976.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121870 + ... + 229586.

Almost surely, 2^18928892976 is an apocalyptic number.

18928892976 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 18928892976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27996339072).

18928892976 is an abundant number, since it is smaller than the sum of its proper divisors (37063785168).

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

18928892976 is a wasteful number, since it uses less digits than its factorization.

18928892976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108258 (or 108252 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 69.

The spelling of 18928892976 in words is "eighteen billion, nine hundred twenty-eight million, eight hundred ninety-two thousand, nine hundred seventy-six".