18539184853 has 8 divisors (see below), whose sum is σ = 21189754880. Its totient is φ = 15889143600.

The previous prime is 18539184847. The next prime is 18539184863. The reversal of 18539184853 is 35848193581.

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 18539184853 - 2⁹ = 18539184341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18539184794 and 18539184803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18539184823) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 53973 + ... + 199978.

It is an arithmetic number, because the mean of its divisors is an integer number (2648719360).

Almost surely, 2^18539184853 is an apocalyptic number.

It is an amenable number.

18539184853 is a deficient number, since it is larger than the sum of its proper divisors (2650570027).

18539184853 is a wasteful number, since it uses less digits than its factorization.

18539184853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264387.

The product of its digits is 4147200, while the sum is 55.

The spelling of 18539184853 in words is "eighteen billion, five hundred thirty-nine million, one hundred eighty-four thousand, eight hundred fifty-three".