6247600668209 has 2 divisors, whose sum is σ = 6247600668210. Its totient is φ = 6247600668208.

The previous prime is 6247600668161. The next prime is 6247600668263. The reversal of 6247600668209 is 9028660067426.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5952121451809 + 295479216400 = 2439697^2 + 543580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6247600668209 is a prime.

It is not a weakly prime, because it can be changed into another prime (6247600668289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3123800334104 + 3123800334105.

It is an arithmetic number, because the mean of its divisors is an integer number (3123800334105).

Almost surely, 2^{6247600668209} is an apocalyptic number.

It is an amenable number.

6247600668209 is a deficient number, since it is larger than the sum of its proper divisors (1).

6247600668209 is an equidigital number, since it uses as much as digits as its factorization.

6247600668209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 6247600668209 in words is "six trillion, two hundred forty-seven billion, six hundred million, six hundred sixty-eight thousand, two hundred nine".