18249333916 has 24 divisors (see below), whose sum is σ = 35070376320. Its totient is φ = 8240214000.

The previous prime is 18249333913. The next prime is 18249333943. The reversal of 18249333916 is 61933394281.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18249333916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18249333913) 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, 1366726 + ... + 1380013.

It is an arithmetic number, because the mean of its divisors is an integer number (1461265680).

Almost surely, 2^18249333916 is an apocalyptic number.

It is an amenable number.

18249333916 is a deficient number, since it is larger than the sum of its proper divisors (16821042404).

18249333916 is a wasteful number, since it uses less digits than its factorization.

18249333916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746905 (or 2746903 counting only the distinct ones).

The product of its digits is 839808, while the sum is 49.

The spelling of 18249333916 in words is "eighteen billion, two hundred forty-nine million, three hundred thirty-three thousand, nine hundred sixteen".