866788526364463 has 8 divisors (see below), whose sum is σ = 867395232056448. Its totient is φ = 866181993509664.

The previous prime is 866788526364451. The next prime is 866788526364473. The reversal of 866788526364463 is 364463625887668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 866788526364463 - 2¹⁷ = 866788526233391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866788526364413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33174856 + ... + 53236717.

It is an arithmetic number, because the mean of its divisors is an integer number (108424404007056).

Almost surely, 2^{866788526364463} is an apocalyptic number.

866788526364463 is a deficient number, since it is larger than the sum of its proper divisors (606705691985).

866788526364463 is a wasteful number, since it uses less digits than its factorization.

866788526364463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86418593.

The product of its digits is 40131624960, while the sum is 82.

The spelling of 866788526364463 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 sixty-three".