18418075333728 has 192 divisors, whose sum is σ = 55875472773120. Its totient is φ = 5203296225792.

The previous prime is 18418075333727. The next prime is 18418075333781. The reversal of 18418075333728 is 82733357081481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18418075333727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45411451 + ... + 45815237.

It is an arithmetic number, because the mean of its divisors is an integer number (291018087360).

Almost surely, 2^{18418075333728} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18418075333728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27937736386560).

18418075333728 is an abundant number, since it is smaller than the sum of its proper divisors (37457397439392).

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

18418075333728 is a wasteful number, since it uses less digits than its factorization.

18418075333728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404569 (or 404561 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 18418075333728 in words is "eighteen trillion, four hundred eighteen billion, seventy-five million, three hundred thirty-three thousand, seven hundred twenty-eight".