228882521388 has 18 divisors (see below), whose sum is σ = 534063083596. Its totient is φ = 76293621368.

The previous prime is 228882521327. The next prime is 228882521411. The reversal of 228882521388 is 883125288822.

228882521388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5 ways as a sum of consecutive naturals, for example, 1588231 + ... + 1726337.

Almost surely, 2^228882521388 is an apocalyptic number.

It is an amenable number.

228882521388 is an abundant number, since it is smaller than the sum of its proper divisors (305180562208).

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

228882521388 is an frugal number, since it uses more digits than its factorization.

228882521388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276221 (or 138112 counting only the distinct ones).

The product of its digits is 7864320, while the sum is 57.

The spelling of 228882521388 in words is "two hundred twenty-eight billion, eight hundred eighty-two million, five hundred twenty-one thousand, three hundred eighty-eight".