18115092591348 has 48 divisors (see below), whose sum is σ = 45076912655040. Its totient is φ = 5642280205824.

The previous prime is 18115092591317. The next prime is 18115092591371. The reversal of 18115092591348 is 84319529051181.

It is a super-2 number, since 2×18115092591348² (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 15 ways as a sum of consecutive naturals, for example, 319394211 + ... + 319450922.

It is an arithmetic number, because the mean of its divisors is an integer number (939102346980).

Almost surely, 2^{18115092591348} is an apocalyptic number.

It is an amenable number.

18115092591348 is an abundant number, since it is smaller than the sum of its proper divisors (26961820063692).

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

18115092591348 is a wasteful number, since it uses less digits than its factorization.

18115092591348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638845296 (or 638845294 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 57.

The spelling of 18115092591348 in words is "eighteen trillion, one hundred fifteen billion, ninety-two million, five hundred ninety-one thousand, three hundred forty-eight".