8631646396 has 6 divisors (see below), whose sum is σ = 15105381200. Its totient is φ = 4315823196.

The previous prime is 8631646393. The next prime is 8631646421. The reversal of 8631646396 is 6936461368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8631646393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078955796 + ... + 1078955803.

Almost surely, 2^8631646396 is an apocalyptic number.

It is an amenable number.

8631646396 is a deficient number, since it is larger than the sum of its proper divisors (6473734804).

8631646396 is a wasteful number, since it uses less digits than its factorization.

8631646396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157911603 (or 2157911601 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 52.

The square root of 8631646396 is about 92906.6542073279. The cubic root of 8631646396 is about 2051.3096050844.

The spelling of 8631646396 in words is "eight billion, six hundred thirty-one million, six hundred forty-six thousand, three hundred ninety-six".