680868148 has 24 divisors (see below), whose sum is σ = 1241503200. Its totient is φ = 326322528.

The previous prime is 680868143. The next prime is 680868151. The reversal of 680868148 is 841868086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680868143) 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, 4990 + ... + 37237.

It is an arithmetic number, because the mean of its divisors is an integer number (51729300).

Almost surely, 2^680868148 is an apocalyptic number.

It is an amenable number.

680868148 is a deficient number, since it is larger than the sum of its proper divisors (560635052).

680868148 is a wasteful number, since it uses less digits than its factorization.

680868148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42399 (or 42397 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 49.

The square root of 680868148 is about 26093.4502892967. The cubic root of 680868148 is about 879.7400006691.

The spelling of 680868148 in words is "six hundred eighty million, eight hundred sixty-eight thousand, one hundred forty-eight".