68450850868681 has 8 divisors (see below), whose sum is σ = 69146465439744. Its totient is φ = 67758637836480.

The previous prime is 68450850868651. The next prime is 68450850868721. The reversal of 68450850868681 is 18686805805486.

68450850868681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 68450850868681 - 2⁷ = 68450850868553 is a prime.

It is a super-2 number, since 2×68450850868681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68450850868651) 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 7 ways as a sum of consecutive naturals, for example, 850344265 + ... + 850424758.

It is an arithmetic number, because the mean of its divisors is an integer number (8643308179968).

Almost surely, 2^{68450850868681} is an apocalyptic number.

It is an amenable number.

68450850868681 is a deficient number, since it is larger than the sum of its proper divisors (695614571063).

68450850868681 is a wasteful number, since it uses less digits than its factorization.

68450850868681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700769431.

The product of its (nonzero) digits is 707788800, while the sum is 73.

The spelling of 68450850868681 in words is "sixty-eight trillion, four hundred fifty billion, eight hundred fifty million, eight hundred sixty-eight thousand, six hundred eighty-one".