18293984684 has 12 divisors (see below), whose sum is σ = 32154276000. Its totient is φ = 9107048688.

The previous prime is 18293984671. The next prime is 18293984689. The reversal of 18293984684 is 48648939281.

It is not an unprimeable number, because it can be changed into a prime (18293984689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9984884 + ... + 9986715.

It is an arithmetic number, because the mean of its divisors is an integer number (2679523000).

Almost surely, 2^18293984684 is an apocalyptic number.

It is an amenable number.

18293984684 is a deficient number, since it is larger than the sum of its proper divisors (13860291316).

18293984684 is a wasteful number, since it uses less digits than its factorization.

18293984684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19971832 (or 19971830 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 62.

The spelling of 18293984684 in words is "eighteen billion, two hundred ninety-three million, nine hundred eighty-four thousand, six hundred eighty-four".