63275639885568 has 1296 divisors, whose sum is σ = 215539506710528. Its totient is φ = 18480702873600.

The previous prime is 63275639885551. The next prime is 63275639885629. The reversal of 63275639885568 is 86558893657236.

63275639885568 is a `hidden beast` number, since 6 + 3 + 2 + 7 + 56 + 3 + 9 + 8 + 8 + 556 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 87036643221 + ... + 87036643947.

Almost surely, 2^{63275639885568} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63275639885568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107769753355264).

63275639885568 is an abundant number, since it is smaller than the sum of its proper divisors (152263866824960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63275639885568 is a wasteful number, since it uses less digits than its factorization.

63275639885568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1147 counting only the distinct ones).

The product of its digits is 15676416000, while the sum is 81.

The spelling of 63275639885568 in words is "sixty-three trillion, two hundred seventy-five billion, six hundred thirty-nine million, eight hundred eighty-five thousand, five hundred sixty-eight".