18479646268 has 24 divisors (see below), whose sum is σ = 32828925024. Its totient is φ = 9100224000.

The previous prime is 18479646203. The next prime is 18479646299. The reversal of 18479646268 is 86264697481.

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, 244168 + ... + 310768.

It is an arithmetic number, because the mean of its divisors is an integer number (1367871876).

Almost surely, 2^18479646268 is an apocalyptic number.

It is an amenable number.

18479646268 is a deficient number, since it is larger than the sum of its proper divisors (14349278756).

18479646268 is a wasteful number, since it uses less digits than its factorization.

18479646268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67653 (or 67651 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 61.

The spelling of 18479646268 in words is "eighteen billion, four hundred seventy-nine million, six hundred forty-six thousand, two hundred sixty-eight".