6397747259 has 2 divisors, whose sum is σ = 6397747260. Its totient is φ = 6397747258.

The previous prime is 6397747199. The next prime is 6397747271. The reversal of 6397747259 is 9527477936.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6397747259 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 6397747198 and 6397747207.

It is not a weakly prime, because it can be changed into another prime (6387747259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198873629 + 3198873630.

It is an arithmetic number, because the mean of its divisors is an integer number (3198873630).

Almost surely, 2^6397747259 is an apocalyptic number.

6397747259 is a deficient number, since it is larger than the sum of its proper divisors (1).

6397747259 is an equidigital number, since it uses as much as digits as its factorization.

6397747259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20003760, while the sum is 59.

The square root of 6397747259 is about 79985.9191295568. The cubic root of 6397747259 is about 1856.4176683503.

The spelling of 6397747259 in words is "six billion, three hundred ninety-seven million, seven hundred forty-seven thousand, two hundred fifty-nine".