681082575306 has 24 divisors (see below), whose sum is σ = 1584559461600. Its totient is φ = 194595021432.

The previous prime is 681082575301. The next prime is 681082575307. The reversal of 681082575306 is 603575280186.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (681082575301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1158303406 + ... + 1158303993.

It is an arithmetic number, because the mean of its divisors is an integer number (66023310900).

Almost surely, 2^681082575306 is an apocalyptic number.

681082575306 is an abundant number, since it is smaller than the sum of its proper divisors (903476886294).

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

681082575306 is a wasteful number, since it uses less digits than its factorization.

681082575306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316607418 (or 2316607411 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 681082575306 in words is "six hundred eighty-one billion, eighty-two million, five hundred seventy-five thousand, three hundred six".