7719712162961 has 2 divisors, whose sum is σ = 7719712162962. Its totient is φ = 7719712162960.

The previous prime is 7719712162913. The next prime is 7719712163029. The reversal of 7719712162961 is 1692612179177.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7292597631361 + 427114531600 = 2700481^2 + 653540^2 .

It is a cyclic number.

It is not a de Polignac number, because 7719712162961 - 2³⁴ = 7702532293777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7719712162961.

It is not a weakly prime, because it can be changed into another prime (7719712161961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3859856081480 + 3859856081481.

It is an arithmetic number, because the mean of its divisors is an integer number (3859856081481).

Almost surely, 2^{7719712162961} is an apocalyptic number.

It is an amenable number.

7719712162961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7719712162961 is an equidigital number, since it uses as much as digits as its factorization.

7719712162961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000752, while the sum is 59.

The spelling of 7719712162961 in words is "seven trillion, seven hundred nineteen billion, seven hundred twelve million, one hundred sixty-two thousand, nine hundred sixty-one".