6468890243 has 2 divisors, whose sum is σ = 6468890244. Its totient is φ = 6468890242.

The previous prime is 6468890237. The next prime is 6468890257. The reversal of 6468890243 is 3420988646.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6468890243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6468890191 and 6468890200.

It is not a weakly prime, because it can be changed into another prime (6468890293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3234445121 + 3234445122.

It is an arithmetic number, because the mean of its divisors is an integer number (3234445122).

Almost surely, 2^6468890243 is an apocalyptic number.

6468890243 is a deficient number, since it is larger than the sum of its proper divisors (1).

6468890243 is an equidigital number, since it uses as much as digits as its factorization.

6468890243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 50.

The square root of 6468890243 is about 80429.4115544805. The cubic root of 6468890243 is about 1863.2734435397.

The spelling of 6468890243 in words is "six billion, four hundred sixty-eight million, eight hundred ninety thousand, two hundred forty-three".