63522401388 has 12 divisors (see below), whose sum is σ = 148218936600. Its totient is φ = 21174133792.

The previous prime is 63522401363. The next prime is 63522401417. The reversal of 63522401388 is 88310422536.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2646766713 + ... + 2646766736.

It is an arithmetic number, because the mean of its divisors is an integer number (12351578050).

Almost surely, 2^63522401388 is an apocalyptic number.

It is an amenable number.

63522401388 is an abundant number, since it is smaller than the sum of its proper divisors (84696535212).

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

63522401388 is a wasteful number, since it uses less digits than its factorization.

63522401388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293533456 (or 5293533454 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 63522401388 in words is "sixty-three billion, five hundred twenty-two million, four hundred one thousand, three hundred eighty-eight".