18796732416 has 756 divisors, whose sum is σ = 71042127156. Its totient is φ = 4768727040.

The previous prime is 18796732399. The next prime is 18796732421. The reversal of 18796732416 is 61423769781.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 437133291 + ... + 437133333.

Almost surely, 2^18796732416 is an apocalyptic number.

18796732416 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 18796732416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35521063578).

18796732416 is an abundant number, since it is smaller than the sum of its proper divisors (52245394740).

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

18796732416 is a wasteful number, since it uses less digits than its factorization.

18796732416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 66 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 18796732416 in words is "eighteen billion, seven hundred ninety-six million, seven hundred thirty-two thousand, four hundred sixteen".