8717989716668 has 24 divisors (see below), whose sum is σ = 15407767226880. Its totient is φ = 4315771803200.

The previous prime is 8717989716659. The next prime is 8717989716673. The reversal of 8717989716668 is 8666179897178.

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, 37893230 + ... + 38122602.

It is an arithmetic number, because the mean of its divisors is an integer number (641990301120).

Almost surely, 2^{8717989716668} is an apocalyptic number.

It is an amenable number.

8717989716668 is a deficient number, since it is larger than the sum of its proper divisors (6689777510212).

8717989716668 is a wasteful number, since it uses less digits than its factorization.

8717989716668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323557 (or 323555 counting only the distinct ones).

The product of its digits is 3072577536, while the sum is 83.

The spelling of 8717989716668 in words is "eight trillion, seven hundred seventeen billion, nine hundred eighty-nine million, seven hundred sixteen thousand, six hundred sixty-eight".