63856324896 has 576 divisors, whose sum is σ = 222164425728. Its totient is φ = 15885821952.

The previous prime is 63856324871. The next prime is 63856324927. The reversal of 63856324896 is 69842365836.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 116738895 + ... + 116739441.

It is an arithmetic number, because the mean of its divisors is an integer number (385702128).

Almost surely, 2^63856324896 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 63856324896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111082212864).

63856324896 is an abundant number, since it is smaller than the sum of its proper divisors (158308100832).

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

63856324896 is a wasteful number, since it uses less digits than its factorization.

63856324896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 678 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 60.

The spelling of 63856324896 in words is "sixty-three billion, eight hundred fifty-six million, three hundred twenty-four thousand, eight hundred ninety-six".