679224247508 has 6 divisors (see below), whose sum is σ = 1188642433146. Its totient is φ = 339612123752.

The previous prime is 679224247489. The next prime is 679224247523. The reversal of 679224247508 is 805742422976.

It can be written as a sum of positive squares in only one way, i.e., 445353353104 + 233870894404 = 667348^2 + 483602^2 .

It is a super-2 number, since 2×679224247508² (a number of 24 digits) contains 22 as substring.

It is a congruent 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 as a sum of consecutive naturals, namely, 84903030935 + ... + 84903030942.

It is an arithmetic number, because the mean of its divisors is an integer number (198107072191).

Almost surely, 2^679224247508 is an apocalyptic number.

It is an amenable number.

679224247508 is a deficient number, since it is larger than the sum of its proper divisors (509418185638).

679224247508 is a wasteful number, since it uses less digits than its factorization.

679224247508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169806061881 (or 169806061879 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 679224247508 in words is "six hundred seventy-nine billion, two hundred twenty-four million, two hundred forty-seven thousand, five hundred eight".