2128113755 has 16 divisors (see below), whose sum is σ = 2669082624. Its totient is φ = 1625833440.

The previous prime is 2128113721. The next prime is 2128113773. The reversal of 2128113755 is 5573118212.

It is a de Polignac number, because none of the positive numbers 2^k-2128113755 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57902 + ... + 87228.

It is an arithmetic number, because the mean of its divisors is an integer number (166817664).

Almost surely, 2^2128113755 is an apocalyptic number.

2128113755 is a deficient number, since it is larger than the sum of its proper divisors (540968869).

2128113755 is a wasteful number, since it uses less digits than its factorization.

2128113755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29986.

The product of its digits is 16800, while the sum is 35.

The square root of 2128113755 is about 46131.4833383883. The cubic root of 2128113755 is about 1286.2684371750.

The spelling of 2128113755 in words is "two billion, one hundred twenty-eight million, one hundred thirteen thousand, seven hundred fifty-five".