6348278197 has 2 divisors, whose sum is σ = 6348278198. Its totient is φ = 6348278196.

The previous prime is 6348278179. The next prime is 6348278213. The reversal of 6348278197 is 7918728436.

Together with previous prime (6348278179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6328838916 + 19439281 = 79554^2 + 4409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6348278197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6348278107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3174139098 + 3174139099.

It is an arithmetic number, because the mean of its divisors is an integer number (3174139099).

Almost surely, 2^6348278197 is an apocalyptic number.

It is an amenable number.

6348278197 is a deficient number, since it is larger than the sum of its proper divisors (1).

6348278197 is an equidigital number, since it uses as much as digits as its factorization.

6348278197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 55.

The square root of 6348278197 is about 79676.0829672242. The cubic root of 6348278197 is about 1851.6205130847.

The spelling of 6348278197 in words is "six billion, three hundred forty-eight million, two hundred seventy-eight thousand, one hundred ninety-seven".