79039373729 has 2 divisors, whose sum is σ = 79039373730. Its totient is φ = 79039373728.

The previous prime is 79039373719. The next prime is 79039373761. The reversal of 79039373729 is 92737393097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51609389329 + 27429984400 = 227177^2 + 165620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79039373729 is a prime.

It is not a weakly prime, because it can be changed into another prime (79039373719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39519686864 + 39519686865.

It is an arithmetic number, because the mean of its divisors is an integer number (39519686865).

Almost surely, 2^79039373729 is an apocalyptic number.

It is an amenable number.

79039373729 is a deficient number, since it is larger than the sum of its proper divisors (1).

79039373729 is an equidigital number, since it uses as much as digits as its factorization.

79039373729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13502538, while the sum is 59.

The spelling of 79039373729 in words is "seventy-nine billion, thirty-nine million, three hundred seventy-three thousand, seven hundred twenty-nine".