79252160681 has 2 divisors, whose sum is σ = 79252160682. Its totient is φ = 79252160680.

The previous prime is 79252160671. The next prime is 79252160717. The reversal of 79252160681 is 18606125297.

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., 55653056281 + 23599104400 = 235909^2 + 153620^2 .

It is a cyclic number.

It is not a de Polignac number, because 79252160681 - 2²⁶ = 79185051817 is a prime.

It is a super-3 number, since 3×79252160681³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (79252160671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39626080340 + 39626080341.

It is an arithmetic number, because the mean of its divisors is an integer number (39626080341).

Almost surely, 2^79252160681 is an apocalyptic number.

It is an amenable number.

79252160681 is a deficient number, since it is larger than the sum of its proper divisors (1).

79252160681 is an equidigital number, since it uses as much as digits as its factorization.

79252160681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 79252160681 in words is "seventy-nine billion, two hundred fifty-two million, one hundred sixty thousand, six hundred eighty-one".