2128682788 has 12 divisors (see below), whose sum is σ = 3728746672. Its totient is φ = 1063326600.

The previous prime is 2128682747. The next prime is 2128682819. The reversal of 2128682788 is 8872868212.

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 3 ways as a sum of consecutive naturals, for example, 248970 + ... + 257377.

Almost surely, 2^2128682788 is an apocalyptic number.

It is an amenable number.

2128682788 is a deficient number, since it is larger than the sum of its proper divisors (1600063884).

2128682788 is a wasteful number, since it uses less digits than its factorization.

2128682788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507402 (or 507400 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 52.

The square root of 2128682788 is about 46137.6504386602. The cubic root of 2128682788 is about 1286.3830713918.

The spelling of 2128682788 in words is "two billion, one hundred twenty-eight million, six hundred eighty-two thousand, seven hundred eighty-eight".