8205090810 has 32 divisors (see below), whose sum is σ = 22505392512. Its totient is φ = 1875449280.

The previous prime is 8205090809. The next prime is 8205090821. The reversal of 8205090810 is 180905028.

It is a happy number.

It is a super-2 number, since 2×8205090810² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19535721 + ... + 19536140.

It is an arithmetic number, because the mean of its divisors is an integer number (703293516).

Almost surely, 2^8205090810 is an apocalyptic number.

8205090810 is an abundant number, since it is smaller than the sum of its proper divisors (14300301702).

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

8205090810 is a wasteful number, since it uses less digits than its factorization.

8205090810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39071878.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 8205090810 is about 90581.9563158138. The cubic root of 8205090810 is about 2016.9468965894.

Adding to 8205090810 its reverse (180905028), we get a palindrome (8385995838).

The spelling of 8205090810 in words is "eight billion, two hundred five million, ninety thousand, eight hundred ten".