79860344273 has 2 divisors, whose sum is σ = 79860344274. Its totient is φ = 79860344272.

The previous prime is 79860344203. The next prime is 79860344341. The reversal of 79860344273 is 37244306897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51668926864 + 28191417409 = 227308^2 + 167903^2 .

It is a cyclic number.

It is not a de Polignac number, because 79860344273 - 2¹⁸ = 79860082129 is a prime.

It is not a weakly prime, because it can be changed into another prime (79860344203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39930172136 + 39930172137.

It is an arithmetic number, because the mean of its divisors is an integer number (39930172137).

Almost surely, 2^79860344273 is an apocalyptic number.

It is an amenable number.

79860344273 is a deficient number, since it is larger than the sum of its proper divisors (1).

79860344273 is an equidigital number, since it uses as much as digits as its factorization.

79860344273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 79860344273 in words is "seventy-nine billion, eight hundred sixty million, three hundred forty-four thousand, two hundred seventy-three".