2887221128 has 32 divisors (see below), whose sum is σ = 5908541760. Its totient is φ = 1311737280.

The previous prime is 2887221049. The next prime is 2887221149. The reversal of 2887221128 is 8211227882.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 207725 + ... + 221187.

It is an arithmetic number, because the mean of its divisors is an integer number (184641930).

Almost surely, 2^2887221128 is an apocalyptic number.

It is an amenable number.

2887221128 is an abundant number, since it is smaller than the sum of its proper divisors (3021320632).

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

2887221128 is a wasteful number, since it uses less digits than its factorization.

2887221128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15917 (or 15913 counting only the distinct ones).

The product of its digits is 57344, while the sum is 41.

The square root of 2887221128 is about 53732.8682279292. The cubic root of 2887221128 is about 1423.9454396151.

The spelling of 2887221128 in words is "two billion, eight hundred eighty-seven million, two hundred twenty-one thousand, one hundred twenty-eight".