63796339728 has 240 divisors, whose sum is σ = 198776777472. Its totient is φ = 18938880000.

The previous prime is 63796339709. The next prime is 63796339759. The reversal of 63796339728 is 82793369736.

It is a super-2 number, since 2×63796339728² (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 (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15516393 + ... + 15520503.

Almost surely, 2^63796339728 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 63796339728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99388388736).

63796339728 is an abundant number, since it is smaller than the sum of its proper divisors (134980437744).

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

63796339728 is a wasteful number, since it uses less digits than its factorization.

63796339728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334 (or 4325 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 63.

The spelling of 63796339728 in words is "sixty-three billion, seven hundred ninety-six million, three hundred thirty-nine thousand, seven hundred twenty-eight".