866786462176271 has 16 divisors (see below), whose sum is σ = 1067092431257664. Its totient is φ = 685630146426624.

The previous prime is 866786462176247. The next prime is 866786462176273. The reversal of 866786462176271 is 172671264687668.

It is not a de Polignac number, because 866786462176271 - 2⁶ = 866786462176207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 866786462176192 and 866786462176201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866786462176273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242166976 + ... + 1242864581.

It is an arithmetic number, because the mean of its divisors is an integer number (66693276953604).

Almost surely, 2^{866786462176271} is an apocalyptic number.

866786462176271 is a deficient number, since it is larger than the sum of its proper divisors (200305969081393).

866786462176271 is a wasteful number, since it uses less digits than its factorization.

866786462176271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485035410.

The product of its digits is 2731180032, while the sum is 77.

The spelling of 866786462176271 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, four hundred sixty-two million, one hundred seventy-six thousand, two hundred seventy-one".