18385500026468 has 24 divisors (see below), whose sum is σ = 32258354277240. Its totient is φ = 9168828869120.

The previous prime is 18385500026429. The next prime is 18385500026497. The reversal of 18385500026468 is 86462000558381.

It can be written as a sum of positive squares in 4 ways, for example, as 10148950564 + 18375351075904 = 100742^2 + 4286648^2 .

It is a super-2 number, since 2×18385500026468² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54230330 + ... + 54568302.

It is an arithmetic number, because the mean of its divisors is an integer number (1344098094885).

Almost surely, 2^{18385500026468} is an apocalyptic number.

It is an amenable number.

18385500026468 is a deficient number, since it is larger than the sum of its proper divisors (13872854250772).

18385500026468 is a wasteful number, since it uses less digits than its factorization.

18385500026468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373327 (or 373325 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 56.

The spelling of 18385500026468 in words is "eighteen trillion, three hundred eighty-five billion, five hundred million, twenty-six thousand, four hundred sixty-eight".