9664214756 has 24 divisors (see below), whose sum is σ = 19451549376. Its totient is φ = 4115423520.

The previous prime is 9664214731. The next prime is 9664214759. The reversal of 9664214756 is 6574124669.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9664214759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094810 + ... + 1103601.

It is an arithmetic number, because the mean of its divisors is an integer number (810481224).

Almost surely, 2^9664214756 is an apocalyptic number.

It is an amenable number.

9664214756 is an abundant number, since it is smaller than the sum of its proper divisors (9787334620).

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

9664214756 is a wasteful number, since it uses less digits than its factorization.

9664214756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198579 (or 2198577 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 9664214756 is about 98306.7381007019. The cubic root of 9664214756 is about 2130.0453865589.

The spelling of 9664214756 in words is "nine billion, six hundred sixty-four million, two hundred fourteen thousand, seven hundred fifty-six".