8936599640 has 64 divisors (see below), whose sum is σ = 20728483200. Its totient is φ = 3464944128.

The previous prime is 8936599601. The next prime is 8936599667. The reversal of 8936599640 is 469956398.

It is a self number, because there is not a number n which added to its sum of digits gives 8936599640.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 386897 + ... + 409343.

It is an arithmetic number, because the mean of its divisors is an integer number (323882550).

Almost surely, 2^8936599640 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 8936599640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10364241600).

8936599640 is an abundant number, since it is smaller than the sum of its proper divisors (11791883560).

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

8936599640 is a wasteful number, since it uses less digits than its factorization.

8936599640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22764 (or 22760 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 59.

The square root of 8936599640 is about 94533.5900090545. The cubic root of 8936599640 is about 2075.1879359463.

The spelling of 8936599640 in words is "eight billion, nine hundred thirty-six million, five hundred ninety-nine thousand, six hundred forty".