2128587892 has 12 divisors (see below), whose sum is σ = 3811657696. Its totient is φ = 1039542840.

The previous prime is 2128587887. The next prime is 2128587919. The reversal of 2128587892 is 2987858212.

It is a congruent number.

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, 6187584 + ... + 6187927.

Almost surely, 2^2128587892 is an apocalyptic number.

It is an amenable number.

2128587892 is a deficient number, since it is larger than the sum of its proper divisors (1683069804).

2128587892 is a wasteful number, since it uses less digits than its factorization.

2128587892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12375558 (or 12375556 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 52.

The square root of 2128587892 is about 46136.6220263252. The cubic root of 2128587892 is about 1286.3639555921.

The spelling of 2128587892 in words is "two billion, one hundred twenty-eight million, five hundred eighty-seven thousand, eight hundred ninety-two".