3243604215617 has 2 divisors, whose sum is σ = 3243604215618. Its totient is φ = 3243604215616.

The previous prime is 3243604215433. The next prime is 3243604215647. The reversal of 3243604215617 is 7165124063423.

3243604215617 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., 2929605368881 + 313998846736 = 1711609^2 + 560356^2 .

It is a cyclic number.

It is not a de Polignac number, because 3243604215617 - 2²⁰ = 3243603167041 is a prime.

It is a super-5 number, since 5×3243604215617⁵ (a number of 64 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (3243604215647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1621802107808 + 1621802107809.

It is an arithmetic number, because the mean of its divisors is an integer number (1621802107809).

Almost surely, 2^{3243604215617} is an apocalyptic number.

It is an amenable number.

3243604215617 is a deficient number, since it is larger than the sum of its proper divisors (1).

3243604215617 is an equidigital number, since it uses as much as digits as its factorization.

3243604215617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 3243604215617 in words is "three trillion, two hundred forty-three billion, six hundred four million, two hundred fifteen thousand, six hundred seventeen".