2085646063 has 4 divisors (see below), whose sum is σ = 2085741280. Its totient is φ = 2085550848.

The previous prime is 2085646051. The next prime is 2085646091. The reversal of 2085646063 is 3606465802.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2085646063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085646963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3631 + ... + 64687.

It is an arithmetic number, because the mean of its divisors is an integer number (521435320).

Almost surely, 2^2085646063 is an apocalyptic number.

2085646063 is a deficient number, since it is larger than the sum of its proper divisors (95217).

2085646063 is an equidigital number, since it uses as much as digits as its factorization.

2085646063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95216.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 2085646063 is about 45668.8741157476. The cubic root of 2085646063 is about 1277.6548169649.

The spelling of 2085646063 in words is "two billion, eighty-five million, six hundred forty-six thousand, sixty-three".