679538611937 has 2 divisors, whose sum is σ = 679538611938. Its totient is φ = 679538611936.

The previous prime is 679538611907. The next prime is 679538611951. The reversal of 679538611937 is 739116835976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505515312016 + 174023299921 = 710996^2 + 417161^2 .

It is a cyclic number.

It is not a de Polignac number, because 679538611937 - 2⁸ = 679538611681 is a prime.

It is a super-2 number, since 2×679538611937² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (679538611907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339769305968 + 339769305969.

It is an arithmetic number, because the mean of its divisors is an integer number (339769305969).

Almost surely, 2^679538611937 is an apocalyptic number.

It is an amenable number.

679538611937 is a deficient number, since it is larger than the sum of its proper divisors (1).

679538611937 is an equidigital number, since it uses as much as digits as its factorization.

679538611937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51438240, while the sum is 65.

The spelling of 679538611937 in words is "six hundred seventy-nine billion, five hundred thirty-eight million, six hundred eleven thousand, nine hundred thirty-seven".