868662266868 has 144 divisors (see below), whose sum is σ = 2604857621184. Its totient is φ = 241050885120.

The previous prime is 868662266861. The next prime is 868662266869.

868662266868 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 868662266796 and 868662266805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868662266861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1494630 + ... + 1992797.

It is an arithmetic number, because the mean of its divisors is an integer number (18089289036).

Almost surely, 2^868662266868 is an apocalyptic number.

It is an amenable number.

868662266868 is an abundant number, since it is smaller than the sum of its proper divisors (1736195354316).

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

868662266868 is a wasteful number, since it uses less digits than its factorization.

868662266868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487502 (or 3487497 counting only the distinct ones).

The product of its digits is 764411904, while the sum is 72.

The spelling of 868662266868 in words is "eight hundred sixty-eight billion, six hundred sixty-two million, two hundred sixty-six thousand, eight hundred sixty-eight".