18926790960 has 720 divisors, whose sum is σ = 76888078848. Its totient is φ = 3835560960.

The previous prime is 18926790943. The next prime is 18926790973. The reversal of 18926790960 is 6909762981.

It is a self number, because there is not a number n which added to its sum of digits gives 18926790960.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 66878979 + ... + 66879261.

Almost surely, 2^18926790960 is an apocalyptic number.

18926790960 is a gapful number since it is divisible by the number (10) 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 18926790960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38444039424).

18926790960 is an abundant number, since it is smaller than the sum of its proper divisors (57961287888).

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

18926790960 is a wasteful number, since it uses less digits than its factorization.

18926790960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 18926790960 in words is "eighteen billion, nine hundred twenty-six million, seven hundred ninety thousand, nine hundred sixty".