63389433536 has 168 divisors, whose sum is σ = 157661945280. Its totient is φ = 25031761920.

The previous prime is 63389433517. The next prime is 63389433557. The reversal of 63389433536 is 63533498336.

It is a super-2 number, since 2×63389433536² (a number of 22 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 1692905 + ... + 1729943.

It is an arithmetic number, because the mean of its divisors is an integer number (938463960).

Almost surely, 2^63389433536 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 63389433536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78830972640).

63389433536 is an abundant number, since it is smaller than the sum of its proper divisors (94272511744).

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

63389433536 is a wasteful number, since it uses less digits than its factorization.

63389433536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37103 (or 37082 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 53.

The spelling of 63389433536 in words is "sixty-three billion, three hundred eighty-nine million, four hundred thirty-three thousand, five hundred thirty-six".