63921168792 has 240 divisors, whose sum is σ = 196624525680. Its totient is φ = 19388678400.

The previous prime is 63921168791. The next prime is 63921168821. The reversal of 63921168792 is 29786112936.

63921168792 is a `hidden beast` number, since 6 + 392 + 1 + 168 + 7 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63921168791) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 7771242 + ... + 7779462.

It is an arithmetic number, because the mean of its divisors is an integer number (819268857).

Almost surely, 2^63921168792 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 63921168792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98312262840).

63921168792 is an abundant number, since it is smaller than the sum of its proper divisors (132703356888).

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

63921168792 is a wasteful number, since it uses less digits than its factorization.

63921168792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8336 (or 8310 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 63921168792 in words is "sixty-three billion, nine hundred twenty-one million, one hundred sixty-eight thousand, seven hundred ninety-two".