18794606920 has 16 divisors (see below), whose sum is σ = 42287865660. Its totient is φ = 7517842752.

The previous prime is 18794606899. The next prime is 18794606923. The reversal of 18794606920 is 2960649781.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18787088356 + 7518564 = 137066^2 + 2742^2 .

It is not an unprimeable number, because it can be changed into a prime (18794606923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234932547 + ... + 234932626.

Almost surely, 2^18794606920 is an apocalyptic number.

18794606920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18794606920 is an abundant number, since it is smaller than the sum of its proper divisors (23493258740).

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

18794606920 is a wasteful number, since it uses less digits than its factorization.

18794606920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469865184 (or 469865180 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 18794606920 in words is "eighteen billion, seven hundred ninety-four million, six hundred six thousand, nine hundred twenty".