79112269129 has 2 divisors, whose sum is σ = 79112269130. Its totient is φ = 79112269128.

The previous prime is 79112269039. The next prime is 79112269133. The reversal of 79112269129 is 92196221197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75658003600 + 3454265529 = 275060^2 + 58773^2 .

It is a cyclic number.

It is not a de Polignac number, because 79112269129 - 2⁷ = 79112269001 is a prime.

It is a super-2 number, since 2×79112269129² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79112269139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39556134564 + 39556134565.

It is an arithmetic number, because the mean of its divisors is an integer number (39556134565).

Almost surely, 2^79112269129 is an apocalyptic number.

It is an amenable number.

79112269129 is a deficient number, since it is larger than the sum of its proper divisors (1).

79112269129 is an equidigital number, since it uses as much as digits as its factorization.

79112269129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 49.

The spelling of 79112269129 in words is "seventy-nine billion, one hundred twelve million, two hundred sixty-nine thousand, one hundred twenty-nine".