679395333920 has 24 divisors (see below), whose sum is σ = 1605071476764. Its totient is φ = 271758133504.

The previous prime is 679395333917. The next prime is 679395333923. The reversal of 679395333920 is 29333593976.

It is an interprime number because it is at equal distance from previous prime (679395333917) and next prime (679395333923).

It can be written as a sum of positive squares in 2 ways, for example, as 554506601104 + 124888732816 = 744652^2 + 353396^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 679395333920.

It is not an unprimeable number, because it can be changed into a prime (679395333923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123110259 + ... + 2123110578.

Almost surely, 2^679395333920 is an apocalyptic number.

It is an amenable number.

679395333920 is an abundant number, since it is smaller than the sum of its proper divisors (925676142844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679395333920 is a wasteful number, since it uses less digits than its factorization.

679395333920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4246220852 (or 4246220844 counting only the distinct ones).

The product of its (nonzero) digits is 24800580, while the sum is 59.

The spelling of 679395333920 in words is "six hundred seventy-nine billion, three hundred ninety-five million, three hundred thirty-three thousand, nine hundred twenty".