6403763063 has 16 divisors (see below), whose sum is σ = 6961248000. Its totient is φ = 5874601920.

The previous prime is 6403763053. The next prime is 6403763081. The reversal of 6403763063 is 3603673046.

It is a cyclic number.

It is not a de Polignac number, because 6403763063 - 2²⁶ = 6336654199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403763053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1913 + ... + 113186.

It is an arithmetic number, because the mean of its divisors is an integer number (435078000).

Almost surely, 2^6403763063 is an apocalyptic number.

6403763063 is a deficient number, since it is larger than the sum of its proper divisors (557484937).

6403763063 is a wasteful number, since it uses less digits than its factorization.

6403763063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115222.

The product of its (nonzero) digits is 163296, while the sum is 38.

The square root of 6403763063 is about 80023.5156875777. The cubic root of 6403763063 is about 1856.9993494658. Note that the first 3 decimals are identical.

The spelling of 6403763063 in words is "six billion, four hundred three million, seven hundred sixty-three thousand, sixty-three".