866788526364422 has 4 divisors (see below), whose sum is σ = 1300182789546636. Its totient is φ = 433394263182210.

The previous prime is 866788526364413. The next prime is 866788526364451. The reversal of 866788526364422 is 224463625887668.

866788526364422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

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, 216697131591104 + ... + 216697131591107.

It is an arithmetic number, because the mean of its divisors is an integer number (325045697386659).

Almost surely, 2^{866788526364422} is an apocalyptic number.

866788526364422 is a deficient number, since it is larger than the sum of its proper divisors (433394263182214).

866788526364422 is a wasteful number, since it uses less digits than its factorization.

866788526364422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433394263182213.

The product of its digits is 8918138880, while the sum is 77.

The spelling of 866788526364422 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred twenty-six million, three hundred sixty-four thousand, four hundred twenty-two".