9979164137 has 2 divisors, whose sum is σ = 9979164138. Its totient is φ = 9979164136.

The previous prime is 9979164109. The next prime is 9979164149. The reversal of 9979164137 is 7314619799.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9894081961 + 85082176 = 99469^2 + 9224^2 .

It is a cyclic number.

It is not a de Polignac number, because 9979164137 - 2¹⁰ = 9979163113 is a prime.

It is not a weakly prime, because it can be changed into another prime (9979166137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4989582068 + 4989582069.

It is an arithmetic number, because the mean of its divisors is an integer number (4989582069).

Almost surely, 2^9979164137 is an apocalyptic number.

It is an amenable number.

9979164137 is a deficient number, since it is larger than the sum of its proper divisors (1).

9979164137 is an equidigital number, since it uses as much as digits as its factorization.

9979164137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2571912, while the sum is 56.

The square root of 9979164137 is about 99895.7663617433. The cubic root of 9979164137 is about 2152.9373327240.

The spelling of 9979164137 in words is "nine billion, nine hundred seventy-nine million, one hundred sixty-four thousand, one hundred thirty-seven".