63948834560 has 144 divisors (see below), whose sum is σ = 169420341216. Its totient is φ = 22973497344.

The previous prime is 63948834529. The next prime is 63948834563. The reversal of 63948834560 is 6543884936.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 63948834496 and 63948834505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63948834563) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 563747 + ... + 667613.

Almost surely, 2^63948834560 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 63948834560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84710170608).

63948834560 is an abundant number, since it is smaller than the sum of its proper divisors (105471506656).

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

63948834560 is a wasteful number, since it uses less digits than its factorization.

63948834560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103938 (or 103924 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 63948834560 in words is "sixty-three billion, nine hundred forty-eight million, eight hundred thirty-four thousand, five hundred sixty".