868782863 has 6 divisors (see below), whose sum is σ = 940753224. Its totient is φ = 801953256.

The previous prime is 868782853. The next prime is 868782869. The reversal of 868782863 is 368287868.

868782863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 868782863 - 2¹⁶ = 868717327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 868782799 and 868782808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868782869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2570195 + ... + 2570532.

It is an arithmetic number, because the mean of its divisors is an integer number (156792204).

Almost surely, 2^868782863 is an apocalyptic number.

868782863 is a deficient number, since it is larger than the sum of its proper divisors (71970361).

868782863 is a wasteful number, since it uses less digits than its factorization.

868782863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140753 (or 5140740 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 56.

The square root of 868782863 is about 29475.1227817629. The cubic root of 868782863 is about 954.1948800295.

The spelling of 868782863 in words is "eight hundred sixty-eight million, seven hundred eighty-two thousand, eight hundred sixty-three".