679710652525 has 6 divisors (see below), whose sum is σ = 842841209162. Its totient is φ = 543768522000.

The previous prime is 679710652513. The next prime is 679710652567. The reversal of 679710652525 is 525256017976.

It can be written as a sum of positive squares in 3 ways, for example, as 17664802281 + 662045850244 = 132909^2 + 813662^2 .

It is not a de Polignac number, because 679710652525 - 2⁹ = 679710652013 is a prime.

It is a super-2 number, since 2×679710652525² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13594213026 + ... + 13594213075.

Almost surely, 2^679710652525 is an apocalyptic number.

It is an amenable number.

679710652525 is a deficient number, since it is larger than the sum of its proper divisors (163130556637).

679710652525 is a wasteful number, since it uses less digits than its factorization.

679710652525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27188426111 (or 27188426106 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 679710652525 in words is "six hundred seventy-nine billion, seven hundred ten million, six hundred fifty-two thousand, five hundred twenty-five".