679728364569927 has 12 divisors (see below), whose sum is σ = 1018193928821160. Its totient is φ = 453152243046456.

The previous prime is 679728364569901. The next prime is 679728364569949. The reversal of 679728364569927 is 729965463827976.

679728364569927 is a `hidden beast` number, since 6 + 7 + 9 + 7 + 2 + 8 + 36 + 4 + 569 + 9 + 2 + 7 = 666.

It is not a de Polignac number, because 679728364569927 - 2²³ = 679728356181319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679728364562927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1398618033852 + ... + 1398618034337.

It is an arithmetic number, because the mean of its divisors is an integer number (84849494068430).

Almost surely, 2^{679728364569927} is an apocalyptic number.

679728364569927 is a deficient number, since it is larger than the sum of its proper divisors (338465564251233).

679728364569927 is an equidigital number, since it uses as much as digits as its factorization.

679728364569927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2797236068204 (or 2797236068192 counting only the distinct ones).

The product of its digits is 103699491840, while the sum is 90.

The spelling of 679728364569927 in words is "six hundred seventy-nine trillion, seven hundred twenty-eight billion, three hundred sixty-four million, five hundred sixty-nine thousand, nine hundred twenty-seven".