679745547959 has 2 divisors, whose sum is σ = 679745547960. Its totient is φ = 679745547958.

The previous prime is 679745547931. The next prime is 679745547983. The reversal of 679745547959 is 959745547976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 679745547959 - 2⁸ = 679745547703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 679745547959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679745547919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339872773979 + 339872773980.

It is an arithmetic number, because the mean of its divisors is an integer number (339872773980).

Almost surely, 2^679745547959 is an apocalyptic number.

679745547959 is a deficient number, since it is larger than the sum of its proper divisors (1).

679745547959 is an equidigital number, since it uses as much as digits as its factorization.

679745547959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000564000, while the sum is 77.

The spelling of 679745547959 in words is "six hundred seventy-nine billion, seven hundred forty-five million, five hundred forty-seven thousand, nine hundred fifty-nine".