18501075572068 has 24 divisors (see below), whose sum is σ = 32388957149472. Its totient is φ = 9247088178624.

The previous prime is 18501075572029. The next prime is 18501075572081. The reversal of 18501075572068 is 86027557010581.

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, 281536471 + ... + 281602177.

It is an arithmetic number, because the mean of its divisors is an integer number (1349539881228).

Almost surely, 2^{18501075572068} is an apocalyptic number.

It is an amenable number.

18501075572068 is a deficient number, since it is larger than the sum of its proper divisors (13887881577404).

18501075572068 is a wasteful number, since it uses less digits than its factorization.

18501075572068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90891 (or 90889 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 55.

The spelling of 18501075572068 in words is "eighteen trillion, five hundred one billion, seventy-five million, five hundred seventy-two thousand, sixty-eight".