9715641264 has 120 divisors (see below), whose sum is σ = 31103540000. Its totient is φ = 2773315584.

The previous prime is 9715641259. The next prime is 9715641307. The reversal of 9715641264 is 4621465179.

9715641264 is a `hidden beast` number, since 9 + 71 + 564 + 12 + 6 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1255134 + ... + 1262850.

Almost surely, 2^9715641264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9715641264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15551770000).

9715641264 is an abundant number, since it is smaller than the sum of its proper divisors (21387898736).

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

9715641264 is a wasteful number, since it uses less digits than its factorization.

9715641264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8987 (or 8978 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 9715641264 is about 98567.9525200762. The cubic root of 9715641264 is about 2133.8169317292.

The spelling of 9715641264 in words is "nine billion, seven hundred fifteen million, six hundred forty-one thousand, two hundred sixty-four".