9768242161 has 2 divisors, whose sum is σ = 9768242162. Its totient is φ = 9768242160.

The previous prime is 9768242149. The next prime is 9768242167. The reversal of 9768242161 is 1612428679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9323833600 + 444408561 = 96560^2 + 21081^2 .

It is a cyclic number.

It is not a de Polignac number, because 9768242161 - 2⁵ = 9768242129 is a prime.

It is not a weakly prime, because it can be changed into another prime (9768242167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4884121080 + 4884121081.

It is an arithmetic number, because the mean of its divisors is an integer number (4884121081).

Almost surely, 2^9768242161 is an apocalyptic number.

It is an amenable number.

9768242161 is a deficient number, since it is larger than the sum of its proper divisors (1).

9768242161 is an equidigital number, since it uses as much as digits as its factorization.

9768242161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 9768242161 is about 98834.4178968035. The cubic root of 9768242161 is about 2137.6608616714.

The spelling of 9768242161 in words is "nine billion, seven hundred sixty-eight million, two hundred forty-two thousand, one hundred sixty-one".