679563455979 has 8 divisors (see below), whose sum is σ = 906089172480. Its totient is φ = 453040021736.

The previous prime is 679563455959. The next prime is 679563456007. The reversal of 679563455979 is 979554365976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 679563455979 - 2⁸ = 679563455723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 679563455979.

It is not an unprimeable number, because it can be changed into a prime (679563455959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325042 + ... + 1210280.

It is an arithmetic number, because the mean of its divisors is an integer number (113261146560).

Almost surely, 2^679563455979 is an apocalyptic number.

679563455979 is a deficient number, since it is larger than the sum of its proper divisors (226525716501).

679563455979 is a wasteful number, since it uses less digits than its factorization.

679563455979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141129.

The product of its digits is 1928934000, while the sum is 75.

The spelling of 679563455979 in words is "six hundred seventy-nine billion, five hundred sixty-three million, four hundred fifty-five thousand, nine hundred seventy-nine".