804421142185 has 4 divisors (see below), whose sum is σ = 965305370628. Its totient is φ = 643536913744.

The previous prime is 804421142177. The next prime is 804421142209. The reversal of 804421142185 is 581241124408.

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

It can be written as a sum of positive squares in 2 ways, for example, as 373335664144 + 431085478041 = 611012^2 + 656571^2 .

It is a cyclic number.

It is not a de Polignac number, because 804421142185 - 2³ = 804421142177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80442114214 + ... + 80442114223.

It is an arithmetic number, because the mean of its divisors is an integer number (241326342657).

Almost surely, 2^804421142185 is an apocalyptic number.

It is an amenable number.

804421142185 is a deficient number, since it is larger than the sum of its proper divisors (160884228443).

804421142185 is a wasteful number, since it uses less digits than its factorization.

804421142185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160884228442.

The product of its (nonzero) digits is 81920, while the sum is 40.

The spelling of 804421142185 in words is "eight hundred four billion, four hundred twenty-one million, one hundred forty-two thousand, one hundred eighty-five".