442291847873 has 4 divisors (see below), whose sum is σ = 443318047488. Its totient is φ = 441265648260.

The previous prime is 442291847869. The next prime is 442291847911. The reversal of 442291847873 is 378748192244.

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 442291847873 - 2² = 442291847869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442291847813) 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, 513099161 + ... + 513100022.

It is an arithmetic number, because the mean of its divisors is an integer number (110829511872).

Almost surely, 2^442291847873 is an apocalyptic number.

It is an amenable number.

442291847873 is a deficient number, since it is larger than the sum of its proper divisors (1026199615).

442291847873 is a wasteful number, since it uses less digits than its factorization.

442291847873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026199614.

The product of its digits is 21676032, while the sum is 59.

The spelling of 442291847873 in words is "four hundred forty-two billion, two hundred ninety-one million, eight hundred forty-seven thousand, eight hundred seventy-three".