63975808416 has 192 divisors, whose sum is σ = 191864889216. Its totient is φ = 18490982400.

The previous prime is 63975808397. The next prime is 63975808423. The reversal of 63975808416 is 61480857936.

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 31 ways as a sum of consecutive naturals, for example, 12111696 + ... + 12116976.

It is an arithmetic number, because the mean of its divisors is an integer number (999296298).

Almost surely, 2^63975808416 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 63975808416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95932444608).

63975808416 is an abundant number, since it is smaller than the sum of its proper divisors (127889080800).

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

63975808416 is a wasteful number, since it uses less digits than its factorization.

63975808416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895 (or 5887 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 63975808416 in words is "sixty-three billion, nine hundred seventy-five million, eight hundred eight thousand, four hundred sixteen".