680856133 has 8 divisors (see below), whose sum is σ = 691148160. Its totient is φ = 670583760.

The previous prime is 680856101. The next prime is 680856139. The reversal of 680856133 is 331658086.

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 680856133 - 2⁵ = 680856101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680856139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74416 + ... + 83062.

It is an arithmetic number, because the mean of its divisors is an integer number (86393520).

Almost surely, 2^680856133 is an apocalyptic number.

It is an amenable number.

680856133 is a deficient number, since it is larger than the sum of its proper divisors (10292027).

680856133 is a wasteful number, since it uses less digits than its factorization.

680856133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9827.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 680856133 is about 26093.2200580917. The cubic root of 680856133 is about 879.7348258354.

The spelling of 680856133 in words is "six hundred eighty million, eight hundred fifty-six thousand, one hundred thirty-three".