63847982016 has 672 divisors, whose sum is σ = 241776138240. Its totient is φ = 15630630912.

The previous prime is 63847981963. The next prime is 63847982021. The reversal of 63847982016 is 61028974836.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70394235 + ... + 70395141.

It is an arithmetic number, because the mean of its divisors is an integer number (359785920).

Almost surely, 2^63847982016 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 63847982016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120888069120).

63847982016 is an abundant number, since it is smaller than the sum of its proper divisors (177928156224).

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

63847982016 is a wasteful number, since it uses less digits than its factorization.

63847982016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 63847982016 in words is "sixty-three billion, eight hundred forty-seven million, nine hundred eighty-two thousand, sixteen".