2805085073 has 4 divisors (see below), whose sum is σ = 3205811520. Its totient is φ = 2404358628.

The previous prime is 2805085043. The next prime is 2805085099. The reversal of 2805085073 is 3705805082.

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 not a de Polignac number, because 2805085073 - 2⁶ = 2805085009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2805085013) 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, 200363213 + ... + 200363226.

It is an arithmetic number, because the mean of its divisors is an integer number (801452880).

Almost surely, 2^2805085073 is an apocalyptic number.

It is an amenable number.

2805085073 is a deficient number, since it is larger than the sum of its proper divisors (400726447).

2805085073 is an equidigital number, since it uses as much as digits as its factorization.

2805085073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400726446.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 2805085073 is about 52963.0538488860. The cubic root of 2805085073 is about 1410.3124691858.

The spelling of 2805085073 in words is "two billion, eight hundred five million, eighty-five thousand, seventy-three".