18322527928321 has 16 divisors (see below), whose sum is σ = 19093388227200. Its totient is φ = 17567280259200.

The previous prime is 18322527928319. The next prime is 18322527928421. The reversal of 18322527928321 is 12382972522381.

It is a cyclic number.

It is not a de Polignac number, because 18322527928321 - 2¹ = 18322527928319 is a prime.

It is a super-2 number, since 2×18322527928321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18322527928421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6754735 + ... + 9070363.

It is an arithmetic number, because the mean of its divisors is an integer number (1193336764200).

Almost surely, 2^{18322527928321} is an apocalyptic number.

It is an amenable number.

18322527928321 is a deficient number, since it is larger than the sum of its proper divisors (770860298879).

18322527928321 is a wasteful number, since it uses less digits than its factorization.

18322527928321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319000.

The product of its digits is 5806080, while the sum is 55.

The spelling of 18322527928321 in words is "eighteen trillion, three hundred twenty-two billion, five hundred twenty-seven million, nine hundred twenty-eight thousand, three hundred twenty-one".