9979699924389 has 16 divisors (see below), whose sum is σ = 14679333474624. Its totient is φ = 5991564681600.

The previous prime is 9979699924387. The next prime is 9979699924409. The reversal of 9979699924389 is 9834299969799.

It is not a de Polignac number, because 9979699924389 - 2¹ = 9979699924387 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979699924387) by changing a digit.

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, 3120605007 + ... + 3120608204.

It is an arithmetic number, because the mean of its divisors is an integer number (917458342164).

Almost surely, 2^{9979699924389} is an apocalyptic number.

It is an amenable number.

9979699924389 is a deficient number, since it is larger than the sum of its proper divisors (4699633550235).

9979699924389 is a wasteful number, since it uses less digits than its factorization.

9979699924389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6241213268.

The product of its digits is 38569862016, while the sum is 93.

The spelling of 9979699924389 in words is "nine trillion, nine hundred seventy-nine billion, six hundred ninety-nine million, nine hundred twenty-four thousand, three hundred eighty-nine".