3265864685609 has 2 divisors, whose sum is σ = 3265864685610. Its totient is φ = 3265864685608.

The previous prime is 3265864685543. The next prime is 3265864685639. The reversal of 3265864685609 is 9065864685623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3154193760025 + 111670925584 = 1776005^2 + 334172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3265864685609 is a prime.

It is not a weakly prime, because it can be changed into another prime (3265864685639) 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 as a sum of consecutive naturals, namely, 1632932342804 + 1632932342805.

It is an arithmetic number, because the mean of its divisors is an integer number (1632932342805).

Almost surely, 2^{3265864685609} is an apocalyptic number.

It is an amenable number.

3265864685609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3265864685609 is an equidigital number, since it uses as much as digits as its factorization.

3265864685609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 447897600, while the sum is 68.

The spelling of 3265864685609 in words is "three trillion, two hundred sixty-five billion, eight hundred sixty-four million, six hundred eighty-five thousand, six hundred nine".