79064431285729 has 2 divisors, whose sum is σ = 79064431285730. Its totient is φ = 79064431285728.

The previous prime is 79064431285691. The next prime is 79064431285751. The reversal of 79064431285729 is 92758213446097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73874454750625 + 5189976535104 = 8595025^2 + 2278152^2 .

It is a cyclic number.

It is not a de Polignac number, because 79064431285729 - 2¹¹ = 79064431283681 is a prime.

It is a super-2 number, since 2×79064431285729² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79064431285759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39532215642864 + 39532215642865.

It is an arithmetic number, because the mean of its divisors is an integer number (39532215642865).

It is a 1-persistent number, because it is pandigital, but 2⋅79064431285729 = 158128862571458 is not.

Almost surely, 2^{79064431285729} is an apocalyptic number.

It is an amenable number.

79064431285729 is a deficient number, since it is larger than the sum of its proper divisors (1).

79064431285729 is an equidigital number, since it uses as much as digits as its factorization.

79064431285729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 182891520, while the sum is 67.

The spelling of 79064431285729 in words is "seventy-nine trillion, sixty-four billion, four hundred thirty-one million, two hundred eighty-five thousand, seven hundred twenty-nine".