681975276 has 12 divisors (see below), whose sum is σ = 1591275672. Its totient is φ = 227325088.

The previous prime is 681975199. The next prime is 681975317. The reversal of 681975276 is 672579186.

681975276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28415625 + ... + 28415648.

It is an arithmetic number, because the mean of its divisors is an integer number (132606306).

Almost surely, 2^681975276 is an apocalyptic number.

It is an amenable number.

681975276 is an abundant number, since it is smaller than the sum of its proper divisors (909300396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681975276 is a wasteful number, since it uses less digits than its factorization.

681975276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56831280 (or 56831278 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The square root of 681975276 is about 26114.6563446659. The cubic root of 681975276 is about 880.2165772034.

The spelling of 681975276 in words is "six hundred eighty-one million, nine hundred seventy-five thousand, two hundred seventy-six".