6343785317 has 2 divisors, whose sum is σ = 6343785318. Its totient is φ = 6343785316.

The previous prime is 6343785289. The next prime is 6343785323. The reversal of 6343785317 is 7135873436.

6343785317 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., 5571278881 + 772506436 = 74641^2 + 27794^2 .

It is a cyclic number.

It is not a de Polignac number, because 6343785317 - 2¹² = 6343781221 is a prime.

It is a super-2 number, since 2×6343785317² = 80487224296369580978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6343785377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3171892658 + 3171892659.

It is an arithmetic number, because the mean of its divisors is an integer number (3171892659).

Almost surely, 2^6343785317 is an apocalyptic number.

It is an amenable number.

6343785317 is a deficient number, since it is larger than the sum of its proper divisors (1).

6343785317 is an equidigital number, since it uses as much as digits as its factorization.

6343785317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 47.

The square root of 6343785317 is about 79647.8833177631. The cubic root of 6343785317 is about 1851.1835929282.

The spelling of 6343785317 in words is "six billion, three hundred forty-three million, seven hundred eighty-five thousand, three hundred seventeen".