8065885609 has 2 divisors, whose sum is σ = 8065885610. Its totient is φ = 8065885608.

The previous prime is 8065885577. The next prime is 8065885621. The reversal of 8065885609 is 9065885608.

8065885609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7034512384 + 1031373225 = 83872^2 + 32115^2 .

It is a cyclic number.

It is not a de Polignac number, because 8065885609 - 2⁵ = 8065885577 is a prime.

It is a super-3 number, since 3×8065885609³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8065885609.

It is not a weakly prime, because it can be changed into another prime (8065885669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4032942804 + 4032942805.

It is an arithmetic number, because the mean of its divisors is an integer number (4032942805).

Almost surely, 2^8065885609 is an apocalyptic number.

It is an amenable number.

8065885609 is a deficient number, since it is larger than the sum of its proper divisors (1).

8065885609 is an equidigital number, since it uses as much as digits as its factorization.

8065885609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The square root of 8065885609 is about 89810.2756314666. The cubic root of 8065885609 is about 2005.4754633872.

Subtracting 8065885609 from its reverse (9065885608), we obtain a palindrome (999999999).

It can be divided in two parts, 80 and 65885609, that added together give a square (65885689 = 8117²).

The spelling of 8065885609 in words is "eight billion, sixty-five million, eight hundred eighty-five thousand, six hundred nine".