9645992605 has 16 divisors (see below), whose sum is σ = 11841453360. Its totient is φ = 7541227008.

The previous prime is 9645992467. The next prime is 9645992617. The reversal of 9645992605 is 5062995469.

It can be written as a sum of positive squares in 8 ways, for example, as 2809 + 9645989796 = 53^2 + 98214^2 .

It is a cyclic number.

It is not a de Polignac number, because 9645992605 - 2¹⁵ = 9645959837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81442 + ... + 161011.

It is an arithmetic number, because the mean of its divisors is an integer number (740090835).

Almost surely, 2^9645992605 is an apocalyptic number.

It is an amenable number.

9645992605 is a deficient number, since it is larger than the sum of its proper divisors (2195460755).

9645992605 is a wasteful number, since it uses less digits than its factorization.

9645992605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242640.

The product of its (nonzero) digits is 5248800, while the sum is 55.

The square root of 9645992605 is about 98214.0143004042. The cubic root of 9645992605 is about 2128.7057905955.

The spelling of 9645992605 in words is "nine billion, six hundred forty-five million, nine hundred ninety-two thousand, six hundred five".