79012345679 has 2 divisors, whose sum is σ = 79012345680. Its totient is φ = 79012345678.

The previous prime is 79012345631. The next prime is 79012345681. The reversal of 79012345679 is 97654321097.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79012345679 is a prime.

Together with 79012345681, it forms a pair of twin primes.

It is a Chen prime.

79012345679 is a modest number, since divided by 12345679 gives 79 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 79012345679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79012342679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39506172839 + 39506172840.

It is an arithmetic number, because the mean of its divisors is an integer number (39506172840).

Almost surely, 2^79012345679 is an apocalyptic number.

79012345679 is a deficient number, since it is larger than the sum of its proper divisors (1).

79012345679 is an equidigital number, since it uses as much as digits as its factorization.

79012345679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 79012345679 in words is "seventy-nine billion, twelve million, three hundred forty-five thousand, six hundred seventy-nine".