63939816192 has 432 divisors, whose sum is σ = 209924114400. Its totient is φ = 17196318720.

The previous prime is 63939816091. The next prime is 63939816197. The reversal of 63939816192 is 29161893936.

It is not an unprimeable number, because it can be changed into a prime (63939816197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44743734 + ... + 44745162.

It is an arithmetic number, because the mean of its divisors is an integer number (485935450).

Almost surely, 2^63939816192 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 63939816192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104962057200).

63939816192 is an abundant number, since it is smaller than the sum of its proper divisors (145984298208).

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

63939816192 is a wasteful number, since it uses less digits than its factorization.

63939816192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1511 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 57.

The spelling of 63939816192 in words is "sixty-three billion, nine hundred thirty-nine million, eight hundred sixteen thousand, one hundred ninety-two".