679847443205 has 32 divisors (see below), whose sum is σ = 934037305344. Its totient is φ = 465344280576.

The previous prime is 679847443193. The next prime is 679847443243. The reversal of 679847443205 is 502344748976.

It is a happy number.

It is not a de Polignac number, because 679847443205 - 2⁸ = 679847442949 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54674669 + ... + 54687101.

It is an arithmetic number, because the mean of its divisors is an integer number (29188665792).

Almost surely, 2^679847443205 is an apocalyptic number.

It is an amenable number.

679847443205 is a deficient number, since it is larger than the sum of its proper divisors (254189862139).

679847443205 is a wasteful number, since it uses less digits than its factorization.

679847443205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15125.

The product of its (nonzero) digits is 40642560, while the sum is 59.

The spelling of 679847443205 in words is "six hundred seventy-nine billion, eight hundred forty-seven million, four hundred forty-three thousand, two hundred five".