2128639588 has 12 divisors (see below), whose sum is σ = 3804377472. Its totient is φ = 1041674600.

The previous prime is 2128639561. The next prime is 2128639589. The reversal of 2128639588 is 8859368212.

It is a super-2 number, since 2×2128639588² = 9062212991201619488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2128639589) 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, 5661088 + ... + 5661463.

It is an arithmetic number, because the mean of its divisors is an integer number (317031456).

Almost surely, 2^2128639588 is an apocalyptic number.

It is an amenable number.

2128639588 is a deficient number, since it is larger than the sum of its proper divisors (1675737884).

2128639588 is a wasteful number, since it uses less digits than its factorization.

2128639588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11322602 (or 11322600 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The square root of 2128639588 is about 46137.1822720027. The cubic root of 2128639588 is about 1286.3743692773.

The spelling of 2128639588 in words is "two billion, one hundred twenty-eight million, six hundred thirty-nine thousand, five hundred eighty-eight".