680125069 has 8 divisors (see below), whose sum is σ = 775527480. Its totient is φ = 590877696.

The previous prime is 680125067. The next prime is 680125073. The reversal of 680125069 is 960521086.

It can be written as a sum of positive squares in 4 ways, for example, as 149744169 + 530380900 = 12237^2 + 23030^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 680125069 - 2¹ = 680125067 is a prime.

It is a super-2 number, since 2×680125069² = 925140218964509522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680125067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1538524 + ... + 1538965.

It is an arithmetic number, because the mean of its divisors is an integer number (96940935).

Almost surely, 2^680125069 is an apocalyptic number.

It is an amenable number.

680125069 is a deficient number, since it is larger than the sum of its proper divisors (95402411).

680125069 is a wasteful number, since it uses less digits than its factorization.

680125069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077519.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 680125069 is about 26079.2075991584. The cubic root of 680125069 is about 879.4198435865.

The spelling of 680125069 in words is "six hundred eighty million, one hundred twenty-five thousand, sixty-nine".