18731041407 has 12 divisors (see below), whose sum is σ = 29137175704. Its totient is φ = 11526794640.

The previous prime is 18731041397. The next prime is 18731041411. The reversal of 18731041407 is 70414013781.

18731041407 is a `hidden beast` number, since 187 + 31 + 0 + 41 + 407 = 666.

It is not a de Polignac number, because 18731041407 - 2²⁶ = 18663932543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18731041807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80047069 + ... + 80047302.

Almost surely, 2^18731041407 is an apocalyptic number.

18731041407 is a deficient number, since it is larger than the sum of its proper divisors (10406134297).

18731041407 is a wasteful number, since it uses less digits than its factorization.

18731041407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160094390 (or 160094387 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 18731041407 in words is "eighteen billion, seven hundred thirty-one million, forty-one thousand, four hundred seven".