63489850368 has 528 divisors, whose sum is σ = 210582259200. Its totient is φ = 16907304960.

The previous prime is 63489850351. The next prime is 63489850397. The reversal of 63489850368 is 86305898436.

It is a happy number.

It is a super-2 number, since 2×63489850368² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 225942388 + ... + 225942668.

Almost surely, 2^63489850368 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 63489850368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105291129600).

63489850368 is an abundant number, since it is smaller than the sum of its proper divisors (147092408832).

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

63489850368 is a wasteful number, since it uses less digits than its factorization.

63489850368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 60.

The spelling of 63489850368 in words is "sixty-three billion, four hundred eighty-nine million, eight hundred fifty thousand, three hundred sixty-eight".