679589121122 has 18 divisors (see below), whose sum is σ = 1022145430017. Its totient is φ = 338876463136.

The previous prime is 679589121119. The next prime is 679589121157. The reversal of 679589121122 is 221121985976.

It can be written as a sum of positive squares in 2 ways, for example, as 670497307921 + 9091813201 = 818839^2 + 95351^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=582919.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 691341443 + ... + 691342425.

Almost surely, 2^679589121122 is an apocalyptic number.

679589121122 is a deficient number, since it is larger than the sum of its proper divisors (342556308895).

679589121122 is an frugal number, since it uses more digits than its factorization.

679589121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154 (or 1578 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 53.

The spelling of 679589121122 in words is "six hundred seventy-nine billion, five hundred eighty-nine million, one hundred twenty-one thousand, one hundred twenty-two".