9664837225 has 6 divisors (see below), whose sum is σ = 11984398190. Its totient is φ = 7731869760.

The previous prime is 9664837201. The next prime is 9664837307. The reversal of 9664837225 is 5227384669.

It can be written as a sum of positive squares in 3 ways, for example, as 36517849 + 9628319376 = 6043^2 + 98124^2 .

It is not a de Polignac number, because 9664837225 - 2⁷ = 9664837097 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 193296720 + ... + 193296769.

Almost surely, 2^9664837225 is an apocalyptic number.

It is an amenable number.

9664837225 is a deficient number, since it is larger than the sum of its proper divisors (2319560965).

9664837225 is a wasteful number, since it uses less digits than its factorization.

9664837225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386593499 (or 386593494 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The square root of 9664837225 is about 98309.9040025978. The cubic root of 9664837225 is about 2130.0911174258.

The spelling of 9664837225 in words is "nine billion, six hundred sixty-four million, eight hundred thirty-seven thousand, two hundred twenty-five".