18138044190300 has 72 divisors (see below), whose sum is σ = 55566431864496. Its totient is φ = 4552293442560.

The previous prime is 18138044190293. The next prime is 18138044190349. The reversal of 18138044190300 is 309144083181.

It is a happy number.

It is a super-2 number, since 2×18138044190300² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1778234527 + ... + 1778244726.

It is an arithmetic number, because the mean of its divisors is an integer number (771755998118).

Almost surely, 2^{18138044190300} is an apocalyptic number.

18138044190300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18138044190300 is an abundant number, since it is smaller than the sum of its proper divisors (37428387674196).

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

18138044190300 is a wasteful number, since it uses less digits than its factorization.

18138044190300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556479287 (or 3556479280 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 18138044190300 in words is "eighteen trillion, one hundred thirty-eight billion, forty-four million, one hundred ninety thousand, three hundred".