18485960562531 has 96 divisors (see below), whose sum is σ = 34746153361920. Its totient is φ = 9192102566400.

The previous prime is 18485960562493. The next prime is 18485960562583. The reversal of 18485960562531 is 13526506958481.

18485960562531 is a `hidden beast` number, since 1 + 8 + 4 + 8 + 5 + 9 + 60 + 562 + 5 + 3 + 1 = 666.

It is not a de Polignac number, because 18485960562531 - 2²⁷ = 18485826344803 is a prime.

It is a super-2 number, since 2×18485960562531² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (18485960562131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4632001 + ... + 7643778.

It is an arithmetic number, because the mean of its divisors is an integer number (361939097520).

Almost surely, 2^{18485960562531} is an apocalyptic number.

18485960562531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18485960562531 is a deficient number, since it is larger than the sum of its proper divisors (16260192799389).

18485960562531 is a wasteful number, since it uses less digits than its factorization.

18485960562531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12275897 (or 12275894 counting only the distinct ones).

The product of its (nonzero) digits is 62208000, while the sum is 63.

The spelling of 18485960562531 in words is "eighteen trillion, four hundred eighty-five billion, nine hundred sixty million, five hundred sixty-two thousand, five hundred thirty-one".