8647738768 has 20 divisors (see below), whose sum is σ = 16818709248. Its totient is φ = 4307426720.

The previous prime is 8647738741. The next prime is 8647738783. The reversal of 8647738768 is 8678377468.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023328 + ... + 1031743.

Almost surely, 2^8647738768 is an apocalyptic number.

It is an amenable number.

8647738768 is a deficient number, since it is larger than the sum of its proper divisors (8170970480).

8647738768 is a wasteful number, since it uses less digits than its factorization.

8647738768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055342 (or 2055336 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 64.

The square root of 8647738768 is about 92993.2189355762. The cubic root of 8647738768 is about 2052.5835970388.

The spelling of 8647738768 in words is "eight billion, six hundred forty-seven million, seven hundred thirty-eight thousand, seven hundred sixty-eight".