63868951063 has 4 divisors (see below), whose sum is σ = 63934324560. Its totient is φ = 63803577568.

The previous prime is 63868951039. The next prime is 63868951189. The reversal of 63868951063 is 36015986836.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63868951063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63868950995 and 63868951013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63868951463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32685283 + ... + 32687236.

It is an arithmetic number, because the mean of its divisors is an integer number (15983581140).

Almost surely, 2^63868951063 is an apocalyptic number.

63868951063 is a deficient number, since it is larger than the sum of its proper divisors (65373497).

63868951063 is an equidigital number, since it uses as much as digits as its factorization.

63868951063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65373496.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 63868951063 in words is "sixty-three billion, eight hundred sixty-eight million, nine hundred fifty-one thousand, sixty-three".