348878466217 has 2 divisors, whose sum is σ = 348878466218. Its totient is φ = 348878466216.

The previous prime is 348878466169. The next prime is 348878466253. The reversal of 348878466217 is 712664878843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341744298921 + 7134167296 = 584589^2 + 84464^2 .

It is an emirp because it is prime and its reverse (712664878843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 348878466217 - 2¹¹ = 348878464169 is a prime.

It is a super-3 number, since 3×348878466217³ (a number of 36 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (348878466617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174439233108 + 174439233109.

It is an arithmetic number, because the mean of its divisors is an integer number (174439233109).

Almost surely, 2^348878466217 is an apocalyptic number.

It is an amenable number.

348878466217 is a deficient number, since it is larger than the sum of its proper divisors (1).

348878466217 is an equidigital number, since it uses as much as digits as its factorization.

348878466217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86704128, while the sum is 64.

The spelling of 348878466217 in words is "three hundred forty-eight billion, eight hundred seventy-eight million, four hundred sixty-six thousand, two hundred seventeen".