18985333549324 has 12 divisors (see below), whose sum is σ = 33996992635144. Its totient is φ = 9271907082144.

The previous prime is 18985333549139. The next prime is 18985333549337. The reversal of 18985333549324 is 42394533358981.

It is a self number, because there is not a number n which added to its sum of digits gives 18985333549324.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55189922937 + ... + 55189923280.

Almost surely, 2^{18985333549324} is an apocalyptic number.

It is an amenable number.

18985333549324 is a deficient number, since it is larger than the sum of its proper divisors (15011659085820).

18985333549324 is a wasteful number, since it uses less digits than its factorization.

18985333549324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110379846264 (or 110379846262 counting only the distinct ones).

The product of its digits is 335923200, while the sum is 67.

The spelling of 18985333549324 in words is "eighteen trillion, nine hundred eighty-five billion, three hundred thirty-three million, five hundred forty-nine thousand, three hundred twenty-four".