9439664968 has 64 divisors (see below), whose sum is σ = 19583856000. Its totient is φ = 4245576192.

The previous prime is 9439664963. The next prime is 9439665007. The reversal of 9439664968 is 8694669349.

It is not an unprimeable number, because it can be changed into a prime (9439664963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469098 + ... + 488806.

It is an arithmetic number, because the mean of its divisors is an integer number (305997750).

Almost surely, 2^9439664968 is an apocalyptic number.

It is an amenable number.

9439664968 is an abundant number, since it is smaller than the sum of its proper divisors (10144191032).

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

9439664968 is a wasteful number, since it uses less digits than its factorization.

9439664968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19894 (or 19890 counting only the distinct ones).

The product of its digits is 60466176, while the sum is 64.

The square root of 9439664968 is about 97157.9382654861. The cubic root of 9439664968 is about 2113.4186077061.

The spelling of 9439664968 in words is "nine billion, four hundred thirty-nine million, six hundred sixty-four thousand, nine hundred sixty-eight".