9979556824 has 16 divisors (see below), whose sum is σ = 19217390400. Its totient is φ = 4854919392.

The previous prime is 9979556819. The next prime is 9979556849. The reversal of 9979556824 is 4286559799.

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 3 ways as a sum of consecutive naturals, for example, 16857064 + ... + 16857655.

It is an arithmetic number, because the mean of its divisors is an integer number (1201086900).

Almost surely, 2^9979556824 is an apocalyptic number.

It is an amenable number.

9979556824 is a deficient number, since it is larger than the sum of its proper divisors (9237833576).

9979556824 is a wasteful number, since it uses less digits than its factorization.

9979556824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33714762 (or 33714758 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 64.

The square root of 9979556824 is about 99897.7318261030. The cubic root of 9979556824 is about 2152.9655722105.

The spelling of 9979556824 in words is "nine billion, nine hundred seventy-nine million, five hundred fifty-six thousand, eight hundred twenty-four".