871919423999 has 8 divisors (see below), whose sum is σ = 939054071760. Its totient is φ = 804793908096.

The previous prime is 871919423987. The next prime is 871919424031. The reversal of 871919423999 is 999324919178.

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 871919423999 - 2²⁰ = 871918375423 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 (871919423699) 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, 2084009 + ... + 2467170.

It is an arithmetic number, because the mean of its divisors is an integer number (117381758970).

Almost surely, 2^871919423999 is an apocalyptic number.

871919423999 is a deficient number, since it is larger than the sum of its proper divisors (67134647761).

871919423999 is a wasteful number, since it uses less digits than its factorization.

871919423999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4565929.

The product of its digits is 79361856, while the sum is 71.

The spelling of 871919423999 in words is "eight hundred seventy-one billion, nine hundred nineteen million, four hundred twenty-three thousand, nine hundred ninety-nine".