63942794208 has 288 divisors, whose sum is σ = 188699172480. Its totient is φ = 20530298880.

The previous prime is 63942794197. The next prime is 63942794233. The reversal of 63942794208 is 80249724936.

63942794208 is a `hidden beast` number, since 6 + 3 + 9 + 427 + 9 + 4 + 208 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×63942794208² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 267542953 + ... + 267543191.

It is an arithmetic number, because the mean of its divisors is an integer number (655205460).

Almost surely, 2^63942794208 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 63942794208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94349586240).

63942794208 is an abundant number, since it is smaller than the sum of its proper divisors (124756378272).

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

63942794208 is a wasteful number, since it uses less digits than its factorization.

63942794208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 63942794208 in words is "sixty-three billion, nine hundred forty-two million, seven hundred ninety-four thousand, two hundred eight".