18809683392 has 28 divisors (see below), whose sum is σ = 49767287816. Its totient is φ = 6269894400.

The previous prime is 18809683351. The next prime is 18809683463. The reversal of 18809683392 is 29338690881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48983359 + ... + 48983742.

Almost surely, 2^18809683392 is an apocalyptic number.

18809683392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18809683392 is an abundant number, since it is smaller than the sum of its proper divisors (30957604424).

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

18809683392 is an equidigital number, since it uses as much as digits as its factorization.

18809683392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97967116 (or 97967106 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 18809683392 in words is "eighteen billion, eight hundred nine million, six hundred eighty-three thousand, three hundred ninety-two".