18539184854 has 8 divisors (see below), whose sum is σ = 28160787360. Its totient is φ = 9152255736.

The previous prime is 18539184847. The next prime is 18539184863. The reversal of 18539184854 is 45848193581.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18539184854.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58668149 + ... + 58668464.

It is an arithmetic number, because the mean of its divisors is an integer number (3520098420).

Almost surely, 2^18539184854 is an apocalyptic number.

18539184854 is a deficient number, since it is larger than the sum of its proper divisors (9621602506).

18539184854 is a wasteful number, since it uses less digits than its factorization.

18539184854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117336694.

The product of its digits is 5529600, while the sum is 56.

The spelling of 18539184854 in words is "eighteen billion, five hundred thirty-nine million, one hundred eighty-four thousand, eight hundred fifty-four".