9724566913 has 8 divisors (see below), whose sum is σ = 10027899648. Its totient is φ = 9425252064.

The previous prime is 9724566893. The next prime is 9724566949. The reversal of 9724566913 is 3196654279.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9724566913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9724566953) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 999556 + ... + 1009237.

It is an arithmetic number, because the mean of its divisors is an integer number (1253487456).

Almost surely, 2^9724566913 is an apocalyptic number.

It is an amenable number.

9724566913 is a deficient number, since it is larger than the sum of its proper divisors (303332735).

9724566913 is a wasteful number, since it uses less digits than its factorization.

9724566913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008943.

The product of its digits is 2449440, while the sum is 52.

The square root of 9724566913 is about 98613.2187538770. The cubic root of 9724566913 is about 2134.4701695020.

The spelling of 9724566913 in words is "nine billion, seven hundred twenty-four million, five hundred sixty-six thousand, nine hundred thirteen".