7952799179561 has 2 divisors, whose sum is σ = 7952799179562. Its totient is φ = 7952799179560.

The previous prime is 7952799179503. The next prime is 7952799179639. The reversal of 7952799179561 is 1659719972597.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5305393582336 + 2647405597225 = 2303344^2 + 1627085^2 .

It is a cyclic number.

It is not a de Polignac number, because 7952799179561 - 2¹⁰ = 7952799178537 is a prime.

It is a super-2 number, since 2×7952799179561² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7952799176561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3976399589780 + 3976399589781.

It is an arithmetic number, because the mean of its divisors is an integer number (3976399589781).

Almost surely, 2^{7952799179561} is an apocalyptic number.

It is an amenable number.

7952799179561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7952799179561 is an equidigital number, since it uses as much as digits as its factorization.

7952799179561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 675126900, while the sum is 77.

The spelling of 7952799179561 in words is "seven trillion, nine hundred fifty-two billion, seven hundred ninety-nine million, one hundred seventy-nine thousand, five hundred sixty-one".