8668631984 has 20 divisors (see below), whose sum is σ = 16799177016. Its totient is φ = 4333360512.

The previous prime is 8668631977. The next prime is 8668632019. The reversal of 8668631984 is 4891368668.

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 3 ways as a sum of consecutive naturals, for example, 18212 + ... + 132924.

Almost surely, 2^8668631984 is an apocalyptic number.

It is an amenable number.

8668631984 is a deficient number, since it is larger than the sum of its proper divisors (8130545032).

8668631984 is a wasteful number, since it uses less digits than its factorization.

8668631984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119444 (or 119438 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 59.

The square root of 8668631984 is about 93105.4884740959. The cubic root of 8668631984 is about 2054.2353036349.

The spelling of 8668631984 in words is "eight billion, six hundred sixty-eight million, six hundred thirty-one thousand, nine hundred eighty-four".