18328695738 has 16 divisors (see below), whose sum is σ = 36664902720. Its totient is φ = 6108313376.

The previous prime is 18328695727. The next prime is 18328695751. The reversal of 18328695738 is 83759682381.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280995 + ... + 340022.

It is an arithmetic number, because the mean of its divisors is an integer number (2291556420).

Almost surely, 2^18328695738 is an apocalyptic number.

18328695738 is an abundant number, since it is smaller than the sum of its proper divisors (18336206982).

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

18328695738 is a wasteful number, since it uses less digits than its factorization.

18328695738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625941.

The product of its digits is 17418240, while the sum is 60.

The spelling of 18328695738 in words is "eighteen billion, three hundred twenty-eight million, six hundred ninety-five thousand, seven hundred thirty-eight".