9979926937 has 16 divisors (see below), whose sum is σ = 10530127872. Its totient is φ = 9444350160.

The previous prime is 9979926923. The next prime is 9979926953. The reversal of 9979926937 is 7396299799.

9979926937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9979926937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9979926907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2304268 + ... + 2308594.

It is an arithmetic number, because the mean of its divisors is an integer number (658132992).

Almost surely, 2^9979926937 is an apocalyptic number.

It is an amenable number.

9979926937 is a deficient number, since it is larger than the sum of its proper divisors (550200935).

9979926937 is a wasteful number, since it uses less digits than its factorization.

9979926937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5988.

The product of its digits is 104162436, while the sum is 70.

The square root of 9979926937 is about 99899.5842684042. The cubic root of 9979926937 is about 2152.9921876441.

It can be divided in two parts, 99799 and 26937, that added together give a square (126736 = 356²).

The spelling of 9979926937 in words is "nine billion, nine hundred seventy-nine million, nine hundred twenty-six thousand, nine hundred thirty-seven".