681254814 has 8 divisors (see below), whose sum is σ = 1362509640. Its totient is φ = 227084936.

The previous prime is 681254807. The next prime is 681254837. The reversal of 681254814 is 418452186.

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

681254814 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56771229 + ... + 56771240.

It is an arithmetic number, because the mean of its divisors is an integer number (170313705).

Almost surely, 2^681254814 is an apocalyptic number.

681254814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

681254814 is a wasteful number, since it uses less digits than its factorization.

681254814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113542474.

The product of its digits is 61440, while the sum is 39.

The square root of 681254814 is about 26100.8584916282. The cubic root of 681254814 is about 879.9065043575.

The spelling of 681254814 in words is "six hundred eighty-one million, two hundred fifty-four thousand, eight hundred fourteen".