18662904968 has 32 divisors (see below), whose sum is σ = 35203872000. Its totient is φ = 9275368320.

The previous prime is 18662904919. The next prime is 18662904971. The reversal of 18662904968 is 86940926681.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 941948 + ... + 961556.

It is an arithmetic number, because the mean of its divisors is an integer number (1100121000).

Almost surely, 2^18662904968 is an apocalyptic number.

It is an amenable number.

18662904968 is a deficient number, since it is larger than the sum of its proper divisors (16540967032).

18662904968 is a wasteful number, since it uses less digits than its factorization.

18662904968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20325 (or 20321 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 59.

The spelling of 18662904968 in words is "eighteen billion, six hundred sixty-two million, nine hundred four thousand, nine hundred sixty-eight".