63738431560 has 16 divisors (see below), whose sum is σ = 143411471100. Its totient is φ = 25495372608.

The previous prime is 63738431503. The next prime is 63738431563. The reversal of 63738431560 is 6513483736.

It can be written as a sum of positive squares in 2 ways, for example, as 60135791076 + 3602640484 = 245226^2 + 60022^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63738431560.

It is not an unprimeable number, because it can be changed into a prime (63738431563) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 796730355 + ... + 796730434.

Almost surely, 2^63738431560 is an apocalyptic number.

It is an amenable number.

63738431560 is an abundant number, since it is smaller than the sum of its proper divisors (79673039540).

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

63738431560 is a wasteful number, since it uses less digits than its factorization.

63738431560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593460800 (or 1593460796 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 63738431560 in words is "sixty-three billion, seven hundred thirty-eight million, four hundred thirty-one thousand, five hundred sixty".