442026385871 has 4 divisors (see below), whose sum is σ = 505173012432. Its totient is φ = 378879759312.

The previous prime is 442026385847. The next prime is 442026385873. The reversal of 442026385871 is 178583620244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442026385871 - 2³⁴ = 424846516687 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 (442026385873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31573313270 + ... + 31573313283.

It is an arithmetic number, because the mean of its divisors is an integer number (126293253108).

Almost surely, 2^442026385871 is an apocalyptic number.

442026385871 is a deficient number, since it is larger than the sum of its proper divisors (63146626561).

442026385871 is an equidigital number, since it uses as much as digits as its factorization.

442026385871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63146626560.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 442026385871 in words is "four hundred forty-two billion, twenty-six million, three hundred eighty-five thousand, eight hundred seventy-one".