866812996423 has 8 divisors (see below), whose sum is σ = 945843356160. Its totient is φ = 787820833080.

The previous prime is 866812996421. The next prime is 866812996429. The reversal of 866812996423 is 324699218668.

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 866812996423 - 2¹ = 866812996421 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 (866812996421) 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, 9501633 + ... + 9592426.

It is an arithmetic number, because the mean of its divisors is an integer number (118230419520).

Almost surely, 2^866812996423 is an apocalyptic number.

866812996423 is a deficient number, since it is larger than the sum of its proper divisors (79030359737).

866812996423 is a wasteful number, since it uses less digits than its factorization.

866812996423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19098197.

The product of its digits is 53747712, while the sum is 64.

The spelling of 866812996423 in words is "eight hundred sixty-six billion, eight hundred twelve million, nine hundred ninety-six thousand, four hundred twenty-three".