18345674108 has 24 divisors (see below), whose sum is σ = 33335517600. Its totient is φ = 8823593408.

The previous prime is 18345674051. The next prime is 18345674159. The reversal of 18345674108 is 80147654381.

It is a congruent number.

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, 262760 + ... + 325167.

It is an arithmetic number, because the mean of its divisors is an integer number (1388979900).

Almost surely, 2^18345674108 is an apocalyptic number.

It is an amenable number.

18345674108 is a deficient number, since it is larger than the sum of its proper divisors (14989843492).

18345674108 is a wasteful number, since it uses less digits than its factorization.

18345674108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588229 (or 588227 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 18345674108 in words is "eighteen billion, three hundred forty-five million, six hundred seventy-four thousand, one hundred eight".