2105824866 has 8 divisors (see below), whose sum is σ = 4211649744. Its totient is φ = 701941620.

The previous prime is 2105824843. The next prime is 2105824883. The reversal of 2105824866 is 6684285012.

It is a sphenic number, since it is the product of 3 distinct primes.

2105824866 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175485400 + ... + 175485411.

It is an arithmetic number, because the mean of its divisors is an integer number (526456218).

Almost surely, 2^2105824866 is an apocalyptic number.

2105824866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105824866 is a wasteful number, since it uses less digits than its factorization.

2105824866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350970816.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 2105824866 is about 45889.2674380405. The cubic root of 2105824866 is about 1281.7620722896.

The spelling of 2105824866 in words is "two billion, one hundred five million, eight hundred twenty-four thousand, eight hundred sixty-six".