18672795320 has 32 divisors (see below), whose sum is σ = 42046052400. Its totient is φ = 7463382528.

The previous prime is 18672795313. The next prime is 18672795331. The reversal of 18672795320 is 2359727681.

It is a super-2 number, since 2×18672795320² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126305 + ... + 230864.

Almost surely, 2^18672795320 is an apocalyptic number.

18672795320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18672795320 is an abundant number, since it is smaller than the sum of its proper divisors (23373257080).

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

18672795320 is a wasteful number, since it uses less digits than its factorization.

18672795320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358487 (or 358483 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 18672795320 in words is "eighteen billion, six hundred seventy-two million, seven hundred ninety-five thousand, three hundred twenty".