18301192204920 has 64 divisors (see below), whose sum is σ = 54932796864000. Its totient is φ = 4877720565888.

The previous prime is 18301192204879. The next prime is 18301192204957. The reversal of 18301192204920 is 2940229110381.

It is a super-2 number, since 2×18301192204920² (a number of 27 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 15 ways as a sum of consecutive naturals, for example, 40357260 + ... + 40808219.

It is an arithmetic number, because the mean of its divisors is an integer number (858324951000).

Almost surely, 2^{18301192204920} is an apocalyptic number.

18301192204920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18301192204920 is an abundant number, since it is smaller than the sum of its proper divisors (36631604659080).

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

18301192204920 is a wasteful number, since it uses less digits than its factorization.

18301192204920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81167372 (or 81167368 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 18301192204920 in words is "eighteen trillion, three hundred one billion, one hundred ninety-two million, two hundred four thousand, nine hundred twenty".