6468068609 has 2 divisors, whose sum is σ = 6468068610. Its totient is φ = 6468068608.

The previous prime is 6468068603. The next prime is 6468068617. The reversal of 6468068609 is 9068608646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5059192384 + 1408876225 = 71128^2 + 37535^2 .

It is a cyclic number.

It is not a de Polignac number, because 6468068609 - 2²⁰ = 6467020033 is a prime.

It is not a weakly prime, because it can be changed into another prime (6468068603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3234034304 + 3234034305.

It is an arithmetic number, because the mean of its divisors is an integer number (3234034305).

Almost surely, 2^6468068609 is an apocalyptic number.

It is an amenable number.

6468068609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6468068609 is an equidigital number, since it uses as much as digits as its factorization.

6468068609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The square root of 6468068609 is about 80424.3035966119. The cubic root of 6468068609 is about 1863.1945534686.

The spelling of 6468068609 in words is "six billion, four hundred sixty-eight million, sixty-eight thousand, six hundred nine".