681546382 has 8 divisors (see below), whose sum is σ = 1115257752. Its totient is φ = 309793800.

The previous prime is 681546379. The next prime is 681546391. The reversal of 681546382 is 283645186.

681546382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 15489669 + ... + 15489712.

It is an arithmetic number, because the mean of its divisors is an integer number (139407219).

Almost surely, 2^681546382 is an apocalyptic number.

681546382 is a deficient number, since it is larger than the sum of its proper divisors (433711370).

681546382 is a wasteful number, since it uses less digits than its factorization.

681546382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30979394.

The product of its digits is 276480, while the sum is 43.

The square root of 681546382 is about 26106.4433042879. The cubic root of 681546382 is about 880.0320158806.

The spelling of 681546382 in words is "six hundred eighty-one million, five hundred forty-six thousand, three hundred eighty-two".