868276681 has 4 divisors (see below), whose sum is σ = 868460164. Its totient is φ = 868093200.

The previous prime is 868276667. The next prime is 868276807. The reversal of 868276681 is 186672868.

868276681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 768176656 + 100100025 = 27716^2 + 10005^2 .

It is a cyclic number.

It is not a de Polignac number, because 868276681 - 2¹⁵ = 868243913 is a prime.

It is a super-2 number, since 2×868276681² = 1507808789536751522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868276181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84450 + ... + 94171.

It is an arithmetic number, because the mean of its divisors is an integer number (217115041).

Almost surely, 2^868276681 is an apocalyptic number.

It is an amenable number.

868276681 is a deficient number, since it is larger than the sum of its proper divisors (183483).

868276681 is a wasteful number, since it uses less digits than its factorization.

868276681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183482.

The product of its digits is 1548288, while the sum is 52.

The square root of 868276681 is about 29466.5349337176. The cubic root of 868276681 is about 954.0095287268.

The spelling of 868276681 in words is "eight hundred sixty-eight million, two hundred seventy-six thousand, six hundred eighty-one".