63446959488 has 256 divisors, whose sum is σ = 192330547200. Its totient is φ = 18343987200.

The previous prime is 63446959453. The next prime is 63446959501. The reversal of 63446959488 is 88495964436.

63446959488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64022673 + ... + 64023663.

It is an arithmetic number, because the mean of its divisors is an integer number (751291200).

Almost surely, 2^63446959488 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 63446959488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96165273600).

63446959488 is an abundant number, since it is smaller than the sum of its proper divisors (128883587712).

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

63446959488 is a wasteful number, since it uses less digits than its factorization.

63446959488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1689 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 66.

The spelling of 63446959488 in words is "sixty-three billion, four hundred forty-six million, nine hundred fifty-nine thousand, four hundred eighty-eight".