8631696388 has 24 divisors (see below), whose sum is σ = 17589120192. Its totient is φ = 3629499744.

The previous prime is 8631696377. The next prime is 8631696413. The reversal of 8631696388 is 8836961368.

It is a super-2 number, since 2×8631696388² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2906770 + ... + 2909737.

It is an arithmetic number, because the mean of its divisors is an integer number (732880008).

Almost surely, 2^8631696388 is an apocalyptic number.

It is an amenable number.

8631696388 is an abundant number, since it is smaller than the sum of its proper divisors (8957423804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8631696388 is a wasteful number, since it uses less digits than its factorization.

8631696388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5816571 (or 5816569 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 58.

The square root of 8631696388 is about 92906.9232511765. The cubic root of 8631696388 is about 2051.3135652741.

The spelling of 8631696388 in words is "eight billion, six hundred thirty-one million, six hundred ninety-six thousand, three hundred eighty-eight".