6342353578217 has 2 divisors, whose sum is σ = 6342353578218. Its totient is φ = 6342353578216.

The previous prime is 6342353578189. The next prime is 6342353578237. The reversal of 6342353578217 is 7128753532436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6040245051481 + 302108526736 = 2457691^2 + 549644^2 .

It is a cyclic number.

It is not a de Polignac number, because 6342353578217 - 2²⁰ = 6342352529641 is a prime.

It is a super-2 number, since 2×6342353578217² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6342353578237) 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, 3171176789108 + 3171176789109.

It is an arithmetic number, because the mean of its divisors is an integer number (3171176789109).

Almost surely, 2^{6342353578217} is an apocalyptic number.

It is an amenable number.

6342353578217 is a deficient number, since it is larger than the sum of its proper divisors (1).

6342353578217 is an equidigital number, since it uses as much as digits as its factorization.

6342353578217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25401600, while the sum is 56.

The spelling of 6342353578217 in words is "six trillion, three hundred forty-two billion, three hundred fifty-three million, five hundred seventy-eight thousand, two hundred seventeen".