63963343063 has 2 divisors, whose sum is σ = 63963343064. Its totient is φ = 63963343062.

The previous prime is 63963343061. The next prime is 63963343123. The reversal of 63963343063 is 36034336936.

63963343063 is digitally balanced in base 2, 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 not a de Polignac number, because 63963343063 - 2¹ = 63963343061 is a prime.

Together with 63963343061, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63963343061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31981671531 + 31981671532.

It is an arithmetic number, because the mean of its divisors is an integer number (31981671532).

Almost surely, 2^63963343063 is an apocalyptic number.

63963343063 is a deficient number, since it is larger than the sum of its proper divisors (1).

63963343063 is an equidigital number, since it uses as much as digits as its factorization.

63963343063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1889568, while the sum is 46.

Adding to 63963343063 its reverse (36034336936), we get a palindrome (99997679999).

It can be divided in two parts, 639633 and 43063, that added together give a triangular number (682696 = T₁₁₆₈).

The spelling of 63963343063 in words is "sixty-three billion, nine hundred sixty-three million, three hundred forty-three thousand, sixty-three".