8321907368 has 16 divisors (see below), whose sum is σ = 15604612980. Its totient is φ = 4160677248.

The previous prime is 8321907329. The next prime is 8321907383. The reversal of 8321907368 is 8637091238.

It can be written as a sum of positive squares in 2 ways, for example, as 7106827204 + 1215080164 = 84302^2 + 34858^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153746 + ... + 200702.

Almost surely, 2^8321907368 is an apocalyptic number.

It is an amenable number.

8321907368 is a deficient number, since it is larger than the sum of its proper divisors (7282705612).

8321907368 is a wasteful number, since it uses less digits than its factorization.

8321907368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69116 (or 69112 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 8321907368 is about 91224.4888612701. The cubic root of 8321907368 is about 2026.4736409874.

The spelling of 8321907368 in words is "eight billion, three hundred twenty-one million, nine hundred seven thousand, three hundred sixty-eight".