79997455229 has 2 divisors, whose sum is σ = 79997455230. Its totient is φ = 79997455228.

The previous prime is 79997455217. The next prime is 79997455309. The reversal of 79997455229 is 92255479997.

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., 53129328004 + 26868127225 = 230498^2 + 163915^2 .

It is a cyclic number.

It is not a de Polignac number, because 79997455229 - 2²⁴ = 79980678013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79997457229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39998727614 + 39998727615.

It is an arithmetic number, because the mean of its divisors is an integer number (39998727615).

Almost surely, 2^79997455229 is an apocalyptic number.

It is an amenable number.

79997455229 is a deficient number, since it is larger than the sum of its proper divisors (1).

79997455229 is an equidigital number, since it uses as much as digits as its factorization.

79997455229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128595600, while the sum is 68.

The spelling of 79997455229 in words is "seventy-nine billion, nine hundred ninety-seven million, four hundred fifty-five thousand, two hundred twenty-nine".