6345188117 has 2 divisors, whose sum is σ = 6345188118. Its totient is φ = 6345188116.

The previous prime is 6345188027. The next prime is 6345188119. The reversal of 6345188117 is 7118815436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6100547236 + 244640881 = 78106^2 + 15641^2 .

It is a cyclic number.

It is not a de Polignac number, because 6345188117 - 2⁸ = 6345187861 is a prime.

It is a super-2 number, since 2×6345188117² = 80522824480236011378, which contains 22 as substring.

Together with 6345188119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6345188119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3172594058 + 3172594059.

It is an arithmetic number, because the mean of its divisors is an integer number (3172594059).

Almost surely, 2^6345188117 is an apocalyptic number.

It is an amenable number.

6345188117 is a deficient number, since it is larger than the sum of its proper divisors (1).

6345188117 is an equidigital number, since it uses as much as digits as its factorization.

6345188117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 44.

The square root of 6345188117 is about 79656.6890913751. The cubic root of 6345188117 is about 1851.3200334930.

The spelling of 6345188117 in words is "six billion, three hundred forty-five million, one hundred eighty-eight thousand, one hundred seventeen".