18368937704 has 16 divisors (see below), whose sum is σ = 37091124420. Its totient is φ = 8477971200.

The previous prime is 18368937679. The next prime is 18368937731. The reversal of 18368937704 is 40773986381.

It can be written as a sum of positive squares in 2 ways, for example, as 15276465604 + 3092472100 = 123598^2 + 55610^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18368937704.

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, 88312097 + ... + 88312304.

Almost surely, 2^18368937704 is an apocalyptic number.

It is an amenable number.

18368937704 is an abundant number, since it is smaller than the sum of its proper divisors (18722186716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18368937704 is a wasteful number, since it uses less digits than its factorization.

18368937704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176624420 (or 176624416 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 18368937704 in words is "eighteen billion, three hundred sixty-eight million, nine hundred thirty-seven thousand, seven hundred four".