9664506239 has 16 divisors (see below), whose sum is σ = 10293228288. Its totient is φ = 9042596352.

The previous prime is 9664506223. The next prime is 9664506287. The reversal of 9664506239 is 9326054669.

It is a cyclic number.

It is not a de Polignac number, because 9664506239 - 2⁴ = 9664506223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9664506209) 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, 3778349 + ... + 3780905.

It is an arithmetic number, because the mean of its divisors is an integer number (643326768).

Almost surely, 2^9664506239 is an apocalyptic number.

9664506239 is a deficient number, since it is larger than the sum of its proper divisors (628722049).

9664506239 is a wasteful number, since it uses less digits than its factorization.

9664506239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794.

The product of its (nonzero) digits is 2099520, while the sum is 50.

The square root of 9664506239 is about 98308.2206074345. The cubic root of 9664506239 is about 2130.0668011553.

The spelling of 9664506239 in words is "nine billion, six hundred sixty-four million, five hundred six thousand, two hundred thirty-nine".