442405824871 has 16 divisors (see below), whose sum is σ = 463858790400. Its totient is φ = 421411811040.

The previous prime is 442405824827. The next prime is 442405824899. The reversal of 442405824871 is 178428504244.

It is a cyclic number.

It is not a de Polignac number, because 442405824871 - 2⁹ = 442405824359 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 (442405824571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2568930 + ... + 2735728.

It is an arithmetic number, because the mean of its divisors is an integer number (28991174400).

Almost surely, 2^442405824871 is an apocalyptic number.

442405824871 is a deficient number, since it is larger than the sum of its proper divisors (21452965529).

442405824871 is a wasteful number, since it uses less digits than its factorization.

442405824871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168174.

The product of its (nonzero) digits is 2293760, while the sum is 49.

The spelling of 442405824871 in words is "four hundred forty-two billion, four hundred five million, eight hundred twenty-four thousand, eight hundred seventy-one".