1850085085 has 4 divisors (see below), whose sum is σ = 2220102108. Its totient is φ = 1480068064.

The previous prime is 1850085047. The next prime is 1850085113. The reversal of 1850085085 is 5805800581.

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 1283502276 + 566582809 = 35826^2 + 23803^2 .

It is a cyclic number.

It is not a de Polignac number, because 1850085085 - 2¹⁷ = 1849954013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185008504 + ... + 185008513.

It is an arithmetic number, because the mean of its divisors is an integer number (555025527).

Almost surely, 2^1850085085 is an apocalyptic number.

It is an amenable number.

1850085085 is a deficient number, since it is larger than the sum of its proper divisors (370017023).

1850085085 is an equidigital number, since it uses as much as digits as its factorization.

1850085085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370017022.

The product of its (nonzero) digits is 64000, while the sum is 40.

The square root of 1850085085 is about 43012.6154168751. The cubic root of 1850085085 is about 1227.6198458015.

The spelling of 1850085085 in words is "one billion, eight hundred fifty million, eighty-five thousand, eighty-five".