9656336789 has 4 divisors (see below), whose sum is σ = 10534185600. Its totient is φ = 8778487980.

The previous prime is 9656336779. The next prime is 9656336791. The reversal of 9656336789 is 9876336569.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9656336789 - 2²⁸ = 9387901333 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 (9656336779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438924389 + ... + 438924410.

It is an arithmetic number, because the mean of its divisors is an integer number (2633546400).

Almost surely, 2^9656336789 is an apocalyptic number.

It is an amenable number.

9656336789 is a deficient number, since it is larger than the sum of its proper divisors (877848811).

9656336789 is a wasteful number, since it uses less digits than its factorization.

9656336789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877848810.

The product of its digits is 44089920, while the sum is 62.

The square root of 9656336789 is about 98266.6616355720. The cubic root of 9656336789 is about 2129.4664469905.

The spelling of 9656336789 in words is "nine billion, six hundred fifty-six million, three hundred thirty-six thousand, seven hundred eighty-nine".