8663897372 has 24 divisors (see below), whose sum is σ = 16335992400. Its totient is φ = 3996792576.

The previous prime is 8663897353. The next prime is 8663897447. The reversal of 8663897372 is 2737983668.

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, 71579 + ... + 149837.

It is an arithmetic number, because the mean of its divisors is an integer number (680666350).

Almost surely, 2^8663897372 is an apocalyptic number.

It is an amenable number.

8663897372 is a deficient number, since it is larger than the sum of its proper divisors (7672095028).

8663897372 is a wasteful number, since it uses less digits than its factorization.

8663897372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80405 (or 80403 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 59.

The square root of 8663897372 is about 93080.0589385288. The cubic root of 8663897372 is about 2053.8612431379.

The spelling of 8663897372 in words is "eight billion, six hundred sixty-three million, eight hundred ninety-seven thousand, three hundred seventy-two".