18713373539 has 8 divisors (see below), whose sum is σ = 21530248800. Its totient is φ = 15932382336.

The previous prime is 18713373529. The next prime is 18713373571. The reversal of 18713373539 is 93537331781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18713373539 - 2²⁴ = 18696596323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18713373529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8969894 + ... + 8971979.

It is an arithmetic number, because the mean of its divisors is an integer number (2691281100).

Almost surely, 2^18713373539 is an apocalyptic number.

18713373539 is a deficient number, since it is larger than the sum of its proper divisors (2816875261).

18713373539 is a wasteful number, since it uses less digits than its factorization.

18713373539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17942029.

The product of its digits is 1428840, while the sum is 50.

The spelling of 18713373539 in words is "eighteen billion, seven hundred thirteen million, three hundred seventy-three thousand, five hundred thirty-nine".