3278668313 has 2 divisors, whose sum is σ = 3278668314. Its totient is φ = 3278668312.

The previous prime is 3278668303. The next prime is 3278668319. The reversal of 3278668313 is 3138668723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3208995904 + 69672409 = 56648^2 + 8347^2 .

It is a cyclic number.

It is not a de Polignac number, because 3278668313 - 2¹⁰ = 3278667289 is a prime.

It is not a weakly prime, because it can be changed into another prime (3278668319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1639334156 + 1639334157.

It is an arithmetic number, because the mean of its divisors is an integer number (1639334157).

Almost surely, 2^3278668313 is an apocalyptic number.

It is an amenable number.

3278668313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3278668313 is an equidigital number, since it uses as much as digits as its factorization.

3278668313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 47.

The square root of 3278668313 is about 57259.6569409912. The cubic root of 3278668313 is about 1485.5906628608.

The spelling of 3278668313 in words is "three billion, two hundred seventy-eight million, six hundred sixty-eight thousand, three hundred thirteen".