442885885873 has 4 divisors (see below), whose sum is σ = 466195669360. Its totient is φ = 419576102388.

The previous prime is 442885885847. The next prime is 442885885879. The reversal of 442885885873 is 378588588244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442885885873 - 2⁹ = 442885885361 is a prime.

It is a super-2 number, since 2×442885885873² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442885885879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11654891715 + ... + 11654891752.

It is an arithmetic number, because the mean of its divisors is an integer number (116548917340).

Almost surely, 2^442885885873 is an apocalyptic number.

It is an amenable number.

442885885873 is a deficient number, since it is larger than the sum of its proper divisors (23309783487).

442885885873 is a wasteful number, since it uses less digits than its factorization.

442885885873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23309783486.

The product of its digits is 550502400, while the sum is 70.

The spelling of 442885885873 in words is "four hundred forty-two billion, eight hundred eighty-five million, eight hundred eighty-five thousand, eight hundred seventy-three".