2086844811 has 4 divisors (see below), whose sum is σ = 2782459752. Its totient is φ = 1391229872.

The previous prime is 2086844801. The next prime is 2086844813. The reversal of 2086844811 is 1184486802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2086844811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2086844813) 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 3 ways as a sum of consecutive naturals, for example, 347807466 + ... + 347807471.

It is an arithmetic number, because the mean of its divisors is an integer number (695614938).

Almost surely, 2^2086844811 is an apocalyptic number.

2086844811 is a deficient number, since it is larger than the sum of its proper divisors (695614941).

2086844811 is an equidigital number, since it uses as much as digits as its factorization.

2086844811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695614940.

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 2086844811 is about 45681.9965741429. The cubic root of 2086844811 is about 1277.8995521328.

The spelling of 2086844811 in words is "two billion, eighty-six million, eight hundred forty-four thousand, eight hundred eleven".