2085819111 has 6 divisors (see below), whose sum is σ = 3012849840. Its totient is φ = 1390546068.

The previous prime is 2085819083. The next prime is 2085819137. The reversal of 2085819111 is 1119185802.

It is not a de Polignac number, because 2085819111 - 2¹⁴ = 2085802727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085819011) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 115878831 + ... + 115878848.

It is an arithmetic number, because the mean of its divisors is an integer number (502141640).

Almost surely, 2^2085819111 is an apocalyptic number.

2085819111 is a deficient number, since it is larger than the sum of its proper divisors (927030729).

2085819111 is a wasteful number, since it uses less digits than its factorization.

2085819111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231757685 (or 231757682 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 36.

The square root of 2085819111 is about 45670.7686710001. The cubic root of 2085819111 is about 1277.6901520584.

The spelling of 2085819111 in words is "two billion, eighty-five million, eight hundred nineteen thousand, one hundred eleven".