63888781060000 has 120 divisors (see below), whose sum is σ = 169266445777044. Its totient is φ = 23589703680000.

The previous prime is 63888781059997. The next prime is 63888781060061. The reversal of 63888781060000 is 6018788836.

It can be written as a sum of positive squares in 10 ways, for example, as 10645315696656 + 53243465363344 = 3262716^2 + 7296812^2 .

It is a super-2 number, since 2×63888781060000² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 122603041 + ... + 123123040.

Almost surely, 2^{63888781060000} is an apocalyptic number.

It is an amenable number.

63888781060000 is an abundant number, since it is smaller than the sum of its proper divisors (105377664717044).

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

63888781060000 is a wasteful number, since it uses less digits than its factorization.

63888781060000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245726124 (or 245726101 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 63888781060000 in words is "sixty-three trillion, eight hundred eighty-eight billion, seven hundred eighty-one million, sixty thousand".