681082814 has 8 divisors (see below), whose sum is σ = 1021744920. Its totient is φ = 340501176.

The previous prime is 681082813. The next prime is 681082823. The reversal of 681082814 is 418280186.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681082813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10157 + ... + 38279.

It is an arithmetic number, because the mean of its divisors is an integer number (127718115).

Almost surely, 2^681082814 is an apocalyptic number.

681082814 is a deficient number, since it is larger than the sum of its proper divisors (340662106).

681082814 is a wasteful number, since it uses less digits than its factorization.

681082814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40234.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 681082814 is about 26097.5633728515. The cubic root of 681082814 is about 879.8324465775.

The spelling of 681082814 in words is "six hundred eighty-one million, eighty-two thousand, eight hundred fourteen".