79347129793 has 2 divisors, whose sum is σ = 79347129794. Its totient is φ = 79347129792.

The previous prime is 79347129781. The next prime is 79347129937. The reversal of 79347129793 is 39792174397.

Together with next prime (79347129937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71721124864 + 7626004929 = 267808^2 + 87327^2 .

It is a cyclic number.

It is not a de Polignac number, because 79347129793 - 2²⁹ = 78810258881 is a prime.

It is not a weakly prime, because it can be changed into another prime (79347129293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39673564896 + 39673564897.

It is an arithmetic number, because the mean of its divisors is an integer number (39673564897).

Almost surely, 2^79347129793 is an apocalyptic number.

It is an amenable number.

79347129793 is a deficient number, since it is larger than the sum of its proper divisors (1).

79347129793 is an equidigital number, since it uses as much as digits as its factorization.

79347129793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18003384, while the sum is 61.

The spelling of 79347129793 in words is "seventy-nine billion, three hundred forty-seven million, one hundred twenty-nine thousand, seven hundred ninety-three".