3287668855649 has 2 divisors, whose sum is σ = 3287668855650. Its totient is φ = 3287668855648.

The previous prime is 3287668855633. The next prime is 3287668855663. The reversal of 3287668855649 is 9465588667823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3287668855249 + 400 = 1813193^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 3287668855649 - 2⁴ = 3287668855633 is a prime.

It is a super-2 number, since 2×3287668855649² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3287668855649.

It is not a weakly prime, because it can be changed into another prime (3287668855699) by changing a digit.

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 as a sum of consecutive naturals, namely, 1643834427824 + 1643834427825.

It is an arithmetic number, because the mean of its divisors is an integer number (1643834427825).

Almost surely, 2^{3287668855649} is an apocalyptic number.

It is an amenable number.

3287668855649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3287668855649 is an equidigital number, since it uses as much as digits as its factorization.

3287668855649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4180377600, while the sum is 77.

The spelling of 3287668855649 in words is "three trillion, two hundred eighty-seven billion, six hundred sixty-eight million, eight hundred fifty-five thousand, six hundred forty-nine".