18535492006539 has 8 divisors (see below), whose sum is σ = 24908587683840. Its totient is φ = 12259695500136.

The previous prime is 18535492006463. The next prime is 18535492006567. The reversal of 18535492006539 is 93560029453581.

It is a happy number.

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

It is not a de Polignac number, because 18535492006539 - 2²⁵ = 18535458452107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18535492006579) 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, 24324792279 + ... + 24324793040.

It is an arithmetic number, because the mean of its divisors is an integer number (3113573460480).

Almost surely, 2^{18535492006539} is an apocalyptic number.

18535492006539 is a deficient number, since it is larger than the sum of its proper divisors (6373095677301).

18535492006539 is a wasteful number, since it uses less digits than its factorization.

18535492006539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48649585449.

The product of its (nonzero) digits is 34992000, while the sum is 60.

The spelling of 18535492006539 in words is "eighteen trillion, five hundred thirty-five billion, four hundred ninety-two million, six thousand, five hundred thirty-nine".