866363412871 has 8 divisors (see below), whose sum is σ = 945163169424. Its totient is φ = 787570230720.

The previous prime is 866363412823. The next prime is 866363412911. The reversal of 866363412871 is 178214363668.

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 866363412871 - 2⁹ = 866363412359 is a prime.

It is a super-2 number, since 2×866363412871² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866363422871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366020 + ... + 1897033.

It is an arithmetic number, because the mean of its divisors is an integer number (118145396178).

Almost surely, 2^866363412871 is an apocalyptic number.

866363412871 is a deficient number, since it is larger than the sum of its proper divisors (78799756553).

866363412871 is a wasteful number, since it uses less digits than its factorization.

866363412871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287201.

The product of its digits is 6967296, while the sum is 55.

The spelling of 866363412871 in words is "eight hundred sixty-six billion, three hundred sixty-three million, four hundred twelve thousand, eight hundred seventy-one".