2010816209 has 4 divisors (see below), whose sum is σ = 2075681280. Its totient is φ = 1945951140.

The previous prime is 2010816191. The next prime is 2010816211. The reversal of 2010816209 is 9026180102.

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 a cyclic number.

It is not a de Polignac number, because 2010816209 - 2¹⁶ = 2010750673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010816289) 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, 32432489 + ... + 32432550.

It is an arithmetic number, because the mean of its divisors is an integer number (518920320).

Almost surely, 2^2010816209 is an apocalyptic number.

It is an amenable number.

2010816209 is a deficient number, since it is larger than the sum of its proper divisors (64865071).

2010816209 is an equidigital number, since it uses as much as digits as its factorization.

2010816209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64865070.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 2010816209 is about 44842.1253845087. The cubic root of 2010816209 is about 1262.1882293122.

The spelling of 2010816209 in words is "two billion, ten million, eight hundred sixteen thousand, two hundred nine".