9639664196 has 12 divisors (see below), whose sum is σ = 16875936252. Its totient is φ = 4817968128.

The previous prime is 9639664189. The next prime is 9639664211. The reversal of 9639664196 is 6914669369.

It can be written as a sum of positive squares in 2 ways, for example, as 4008662596 + 5631001600 = 63314^2 + 75040^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454325 + ... + 475068.

It is an arithmetic number, because the mean of its divisors is an integer number (1406328021).

Almost surely, 2^9639664196 is an apocalyptic number.

It is an amenable number.

9639664196 is a deficient number, since it is larger than the sum of its proper divisors (7236272056).

9639664196 is a wasteful number, since it uses less digits than its factorization.

9639664196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931990 (or 931988 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 59.

The square root of 9639664196 is about 98181.7915705351. The cubic root of 9639664196 is about 2128.2401648331.

The spelling of 9639664196 in words is "nine billion, six hundred thirty-nine million, six hundred sixty-four thousand, one hundred ninety-six".