681348814 has 32 divisors (see below), whose sum is σ = 1138219776. Its totient is φ = 304412160.

The previous prime is 681348809. The next prime is 681348817. The reversal of 681348814 is 418843186.

681348814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681348817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49764 + ... + 61960.

It is an arithmetic number, because the mean of its divisors is an integer number (35569368).

Almost surely, 2^681348814 is an apocalyptic number.

681348814 is a deficient number, since it is larger than the sum of its proper divisors (456870962).

681348814 is a wasteful number, since it uses less digits than its factorization.

681348814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12300.

The product of its digits is 147456, while the sum is 43.

The square root of 681348814 is about 26102.6591365707. The cubic root of 681348814 is about 879.9469725278.

The spelling of 681348814 in words is "six hundred eighty-one million, three hundred forty-eight thousand, eight hundred fourteen".