679128675668 has 24 divisors (see below), whose sum is σ = 1190485695168. Its totient is φ = 338990052096.

The previous prime is 679128675661. The next prime is 679128675733. The reversal of 679128675668 is 866576821976.

It is a super-2 number, since 2×679128675668² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679128675661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26409305 + ... + 26435007.

It is an arithmetic number, because the mean of its divisors is an integer number (49603570632).

Almost surely, 2^679128675668 is an apocalyptic number.

It is an amenable number.

679128675668 is a deficient number, since it is larger than the sum of its proper divisors (511357019500).

679128675668 is a wasteful number, since it uses less digits than its factorization.

679128675668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36623 (or 36621 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 71.

The spelling of 679128675668 in words is "six hundred seventy-nine billion, one hundred twenty-eight million, six hundred seventy-five thousand, six hundred sixty-eight".