680869135 has 16 divisors (see below), whose sum is σ = 827560800. Its totient is φ = 537703936.

The previous prime is 680869127. The next prime is 680869139. The reversal of 680869135 is 531968086.

680869135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 680869135 - 2³ = 680869127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680869139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527571 + ... + 528859.

It is an arithmetic number, because the mean of its divisors is an integer number (51722550).

Almost surely, 2^680869135 is an apocalyptic number.

680869135 is a deficient number, since it is larger than the sum of its proper divisors (146691665).

680869135 is a wasteful number, since it uses less digits than its factorization.

680869135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 680869135 is about 26093.4692020820. The cubic root of 680869135 is about 879.7404257651.

The spelling of 680869135 in words is "six hundred eighty million, eight hundred sixty-nine thousand, one hundred thirty-five".