63906273863 has 2 divisors, whose sum is σ = 63906273864. Its totient is φ = 63906273862.

The previous prime is 63906273853. The next prime is 63906273947. The reversal of 63906273863 is 36837260936.

63906273863 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 63906273863 - 2⁶ = 63906273799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63906273853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31953136931 + 31953136932.

It is an arithmetic number, because the mean of its divisors is an integer number (31953136932).

Almost surely, 2^63906273863 is an apocalyptic number.

63906273863 is a deficient number, since it is larger than the sum of its proper divisors (1).

63906273863 is an equidigital number, since it uses as much as digits as its factorization.

63906273863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 53.

The spelling of 63906273863 in words is "sixty-three billion, nine hundred six million, two hundred seventy-three thousand, eight hundred sixty-three".