63723898368 has 320 divisors, whose sum is σ = 204678566400. Its totient is φ = 19458662400.

The previous prime is 63723898361. The next prime is 63723898379. The reversal of 63723898368 is 86389832736.

63723898368 is a `hidden beast` number, since 6 + 37 + 238 + 9 + 8 + 368 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63723898361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24978693 + ... + 24981243.

It is an arithmetic number, because the mean of its divisors is an integer number (639620520).

Almost surely, 2^63723898368 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 63723898368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102339283200).

63723898368 is an abundant number, since it is smaller than the sum of its proper divisors (140954668032).

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

63723898368 is a wasteful number, since it uses less digits than its factorization.

63723898368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730 (or 2708 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The spelling of 63723898368 in words is "sixty-three billion, seven hundred twenty-three million, eight hundred ninety-eight thousand, three hundred sixty-eight".