447431871889 has 8 divisors (see below), whose sum is σ = 448439598080. Its totient is φ = 446424271776.

The previous prime is 447431871857. The next prime is 447431871911. The reversal of 447431871889 is 988178134744.

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 447431871889 - 2⁵ = 447431871857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 447431871889.

It is not an unprimeable number, because it can be changed into a prime (447431871839) 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, 14169052 + ... + 14200594.

It is an arithmetic number, because the mean of its divisors is an integer number (56054949760).

Almost surely, 2^447431871889 is an apocalyptic number.

It is an amenable number.

447431871889 is a deficient number, since it is larger than the sum of its proper divisors (1007726191).

447431871889 is a wasteful number, since it uses less digits than its factorization.

447431871889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63039.

The product of its digits is 43352064, while the sum is 64.

The spelling of 447431871889 in words is "four hundred forty-seven billion, four hundred thirty-one million, eight hundred seventy-one thousand, eight hundred eighty-nine".