18949186526040 has 96 divisors (see below), whose sum is σ = 61585431148800. Its totient is φ = 5053069232640.

The previous prime is 18949186526033. The next prime is 18949186526071. The reversal of 18949186526040 is 4062568194981.

18949186526040 is a `hidden beast` number, since 1 + 8 + 9 + 4 + 9 + 18 + 6 + 5 + 2 + 604 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56630025 + ... + 56963655.

It is an arithmetic number, because the mean of its divisors is an integer number (641514907800).

Almost surely, 2^{18949186526040} is an apocalyptic number.

18949186526040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18949186526040 is an abundant number, since it is smaller than the sum of its proper divisors (42636244622760).

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

18949186526040 is a wasteful number, since it uses less digits than its factorization.

18949186526040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491417 (or 491410 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 18949186526040 in words is "eighteen trillion, nine hundred forty-nine billion, one hundred eighty-six million, five hundred twenty-six thousand, forty".