6403406063 has 2 divisors, whose sum is σ = 6403406064. Its totient is φ = 6403406062.

The previous prime is 6403406059. The next prime is 6403406071. The reversal of 6403406063 is 3606043046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6403406063 - 2² = 6403406059 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6403406663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201703031 + 3201703032.

It is an arithmetic number, because the mean of its divisors is an integer number (3201703032).

Almost surely, 2^6403406063 is an apocalyptic number.

6403406063 is a deficient number, since it is larger than the sum of its proper divisors (1).

6403406063 is an equidigital number, since it uses as much as digits as its factorization.

6403406063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 6403406063 is about 80021.2850621633. The cubic root of 6403406063 is about 1856.9648405330.

The spelling of 6403406063 in words is "six billion, four hundred three million, four hundred six thousand, sixty-three".