9979164149 has 2 divisors, whose sum is σ = 9979164150. Its totient is φ = 9979164148.

The previous prime is 9979164137. The next prime is 9979164193. The reversal of 9979164149 is 9414619799.

9979164149 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7599480625 + 2379683524 = 87175^2 + 48782^2 .

It is a cyclic number.

It is not a de Polignac number, because 9979164149 - 2²⁰ = 9978115573 is a prime.

It is a super-2 number, since 2×9979164149² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9979164109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4989582074 + 4989582075.

It is an arithmetic number, because the mean of its divisors is an integer number (4989582075).

Almost surely, 2^9979164149 is an apocalyptic number.

It is an amenable number.

9979164149 is a deficient number, since it is larger than the sum of its proper divisors (1).

9979164149 is an equidigital number, since it uses as much as digits as its factorization.

9979164149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4408992, while the sum is 59.

The square root of 9979164149 is about 99895.7664218059. The cubic root of 9979164149 is about 2152.9373335870.

The spelling of 9979164149 in words is "nine billion, nine hundred seventy-nine million, one hundred sixty-four thousand, one hundred forty-nine".