679070917439 has 2 divisors, whose sum is σ = 679070917440. Its totient is φ = 679070917438.

The previous prime is 679070917429. The next prime is 679070917463. The reversal of 679070917439 is 934719070976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679070917439 - 2⁸ = 679070917183 is a prime.

It is a super-2 number, since 2×679070917439² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679070917429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339535458719 + 339535458720.

It is an arithmetic number, because the mean of its divisors is an integer number (339535458720).

Almost surely, 2^679070917439 is an apocalyptic number.

679070917439 is a deficient number, since it is larger than the sum of its proper divisors (1).

679070917439 is an equidigital number, since it uses as much as digits as its factorization.

679070917439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18003384, while the sum is 62.

The spelling of 679070917439 in words is "six hundred seventy-nine billion, seventy million, nine hundred seventeen thousand, four hundred thirty-nine".