681468814 has 8 divisors (see below), whose sum is σ = 1100834280. Its totient is φ = 314524056.

The previous prime is 681468787. The next prime is 681468833. The reversal of 681468814 is 418864186.

681468814 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, 13105144 + ... + 13105195.

It is an arithmetic number, because the mean of its divisors is an integer number (137604285).

Almost surely, 2^681468814 is an apocalyptic number.

681468814 is a deficient number, since it is larger than the sum of its proper divisors (419365466).

681468814 is a wasteful number, since it uses less digits than its factorization.

681468814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26210354.

The product of its digits is 294912, while the sum is 46.

The square root of 681468814 is about 26104.9576517565. The cubic root of 681468814 is about 879.9986286136.

The spelling of 681468814 in words is "six hundred eighty-one million, four hundred sixty-eight thousand, eight hundred fourteen".