6403458863 has 2 divisors, whose sum is σ = 6403458864. Its totient is φ = 6403458862.

The previous prime is 6403458851. The next prime is 6403458931. The reversal of 6403458863 is 3688543046.

6403458863 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6403458863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6403458823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201729431 + 3201729432.

It is an arithmetic number, because the mean of its divisors is an integer number (3201729432).

Almost surely, 2^6403458863 is an apocalyptic number.

6403458863 is a deficient number, since it is larger than the sum of its proper divisors (1).

6403458863 is an equidigital number, since it uses as much as digits as its factorization.

6403458863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The square root of 6403458863 is about 80021.6149737057. The cubic root of 6403458863 is about 1856.9699444560.

The spelling of 6403458863 in words is "six billion, four hundred three million, four hundred fifty-eight thousand, eight hundred sixty-three".