681755350 has 12 divisors (see below), whose sum is σ = 1268065044. Its totient is φ = 272702120.

The previous prime is 681755297. The next prime is 681755363. The reversal of 681755350 is 53557186.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6817504 + ... + 6817603.

It is an arithmetic number, because the mean of its divisors is an integer number (105672087).

Almost surely, 2^681755350 is an apocalyptic number.

681755350 is a deficient number, since it is larger than the sum of its proper divisors (586309694).

681755350 is a wasteful number, since it uses less digits than its factorization.

681755350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13635119 (or 13635114 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 681755350 is about 26110.4452279160. The cubic root of 681755350 is about 880.1219484924.

The spelling of 681755350 in words is "six hundred eighty-one million, seven hundred fifty-five thousand, three hundred fifty".