447125865721 has 16 divisors (see below), whose sum is σ = 484513273728. Its totient is φ = 410973292800.

The previous prime is 447125865623. The next prime is 447125865779. The reversal of 447125865721 is 127568521744.

It is a cyclic number.

It is not a de Polignac number, because 447125865721 - 2⁹ = 447125865209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447125865521) 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 15 ways as a sum of consecutive naturals, for example, 4978191 + ... + 5067211.

It is an arithmetic number, because the mean of its divisors is an integer number (30282079608).

Almost surely, 2^447125865721 is an apocalyptic number.

It is an amenable number.

447125865721 is a deficient number, since it is larger than the sum of its proper divisors (37387408007).

447125865721 is a wasteful number, since it uses less digits than its factorization.

447125865721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95952.

The product of its digits is 3763200, while the sum is 52.

The spelling of 447125865721 in words is "four hundred forty-seven billion, one hundred twenty-five million, eight hundred sixty-five thousand, seven hundred twenty-one".