868203788656 has 10 divisors (see below), whose sum is σ = 1682144840552. Its totient is φ = 434101894320.

The previous prime is 868203788623. The next prime is 868203788663. The reversal of 868203788656 is 656887302868.

868203788656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 868203788591 and 868203788600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27131368380 + ... + 27131368411.

Almost surely, 2^868203788656 is an apocalyptic number.

It is an amenable number.

868203788656 is a deficient number, since it is larger than the sum of its proper divisors (813941051896).

868203788656 is a wasteful number, since it uses less digits than its factorization.

868203788656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54262736799 (or 54262736793 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 67.

The spelling of 868203788656 in words is "eight hundred sixty-eight billion, two hundred three million, seven hundred eighty-eight thousand, six hundred fifty-six".