868262868 has 96 divisors (see below), whose sum is σ = 2522190720. Its totient is φ = 255985920.

The previous prime is 868262839. The next prime is 868262869.

868262868 is a `hidden beast` number, since 8 + 6 + 8 + 2 + 628 + 6 + 8 = 666.

868262868 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868262869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34080 + ... + 53832.

It is an arithmetic number, because the mean of its divisors is an integer number (26272820).

Almost surely, 2^868262868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868262868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1261095360).

868262868 is an abundant number, since it is smaller than the sum of its proper divisors (1653927852).

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

868262868 is a wasteful number, since it uses less digits than its factorization.

868262868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19814 (or 19806 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 54.

The square root of 868262868 is about 29466.3005482534. The cubic root of 868262868 is about 954.0044697390.

The spelling of 868262868 in words is "eight hundred sixty-eight million, two hundred sixty-two thousand, eight hundred sixty-eight".