18183454398072 has 96 divisors (see below), whose sum is σ = 51852024806400. Its totient is φ = 5740678087488.

The previous prime is 18183454398023. The next prime is 18183454398073. The reversal of 18183454398072 is 27089345438181.

18183454398072 is a `hidden beast` number, since 1 + 8 + 1 + 8 + 3 + 4 + 543 + 9 + 80 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18183454398073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3672553 + ... + 7060775.

It is an arithmetic number, because the mean of its divisors is an integer number (540125258400).

Almost surely, 2^{18183454398072} is an apocalyptic number.

18183454398072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18183454398072 is an abundant number, since it is smaller than the sum of its proper divisors (33668570408328).

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

18183454398072 is a wasteful number, since it uses less digits than its factorization.

18183454398072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392177 (or 3392170 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 18183454398072 in words is "eighteen trillion, one hundred eighty-three billion, four hundred fifty-four million, three hundred ninety-eight thousand, seventy-two".