679538611907 has 2 divisors, whose sum is σ = 679538611908. Its totient is φ = 679538611906.

The previous prime is 679538611903. The next prime is 679538611937. The reversal of 679538611907 is 709116835976.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 679538611907 - 2² = 679538611903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 679538611907.

It is not a weakly prime, because it can be changed into another prime (679538611901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339769305953 + 339769305954.

It is an arithmetic number, because the mean of its divisors is an integer number (339769305954).

Almost surely, 2^679538611907 is an apocalyptic number.

679538611907 is a deficient number, since it is larger than the sum of its proper divisors (1).

679538611907 is an equidigital number, since it uses as much as digits as its factorization.

679538611907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17146080, while the sum is 62.

The spelling of 679538611907 in words is "six hundred seventy-nine billion, five hundred thirty-eight million, six hundred eleven thousand, nine hundred seven".