7961719793 has 2 divisors, whose sum is σ = 7961719794. Its totient is φ = 7961719792.

The previous prime is 7961719781. The next prime is 7961719807. The reversal of 7961719793 is 3979171697.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5768858209 + 2192861584 = 75953^2 + 46828^2 .

It is a cyclic number.

It is not a de Polignac number, because 7961719793 - 2¹⁰ = 7961718769 is a prime.

It is not a weakly prime, because it can be changed into another prime (7961719723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3980859896 + 3980859897.

It is an arithmetic number, because the mean of its divisors is an integer number (3980859897).

Almost surely, 2^7961719793 is an apocalyptic number.

It is an amenable number.

7961719793 is a deficient number, since it is larger than the sum of its proper divisors (1).

7961719793 is an equidigital number, since it uses as much as digits as its factorization.

7961719793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500846, while the sum is 59.

The square root of 7961719793 is about 89228.4696327355. The cubic root of 7961719793 is about 1996.8048810757.

The spelling of 7961719793 in words is "seven billion, nine hundred sixty-one million, seven hundred nineteen thousand, seven hundred ninety-three".