3217649874479 has 2 divisors, whose sum is σ = 3217649874480. Its totient is φ = 3217649874478.

The previous prime is 3217649874427. The next prime is 3217649874499. The reversal of 3217649874479 is 9744789467123.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3217649874479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3217649874499) 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, 1608824937239 + 1608824937240.

It is an arithmetic number, because the mean of its divisors is an integer number (1608824937240).

Almost surely, 2^{3217649874479} is an apocalyptic number.

3217649874479 is a deficient number, since it is larger than the sum of its proper divisors (1).

3217649874479 is an equidigital number, since it uses as much as digits as its factorization.

3217649874479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512096256, while the sum is 71.

The spelling of 3217649874479 in words is "three trillion, two hundred seventeen billion, six hundred forty-nine million, eight hundred seventy-four thousand, four hundred seventy-nine".