868226235648 has 144 divisors (see below), whose sum is σ = 2419234413120. Its totient is φ = 276061929472.

The previous prime is 868226235637. The next prime is 868226235689. The reversal of 868226235648 is 846532622868.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 868226235591 and 868226235600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613740 + ... + 2083412.

It is an arithmetic number, because the mean of its divisors is an integer number (16800238980).

Almost surely, 2^868226235648 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 868226235648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209617206560).

868226235648 is an abundant number, since it is smaller than the sum of its proper divisors (1551008177472).

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

868226235648 is a wasteful number, since it uses less digits than its factorization.

868226235648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469804 (or 469790 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 60.

The spelling of 868226235648 in words is "eight hundred sixty-eight billion, two hundred twenty-six million, two hundred thirty-five thousand, six hundred forty-eight".