9969568723 has 16 divisors (see below), whose sum is σ = 10674810720. Its totient is φ = 9277710336.

The previous prime is 9969568703. The next prime is 9969568747. The reversal of 9969568723 is 3278659699.

It is a cyclic number.

It is not a de Polignac number, because 9969568723 - 2¹⁷ = 9969437651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9969568703) 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, 2360908 + ... + 2365126.

It is an arithmetic number, because the mean of its divisors is an integer number (667175670).

Almost surely, 2^9969568723 is an apocalyptic number.

9969568723 is a deficient number, since it is larger than the sum of its proper divisors (705241997).

9969568723 is a wasteful number, since it uses less digits than its factorization.

9969568723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766.

The product of its digits is 44089920, while the sum is 64.

The square root of 9969568723 is about 99847.7276807039. The cubic root of 9969568723 is about 2152.2470628249.

The spelling of 9969568723 in words is "nine billion, nine hundred sixty-nine million, five hundred sixty-eight thousand, seven hundred twenty-three".