2128897175 has 24 divisors (see below), whose sum is σ = 2682328320. Its totient is φ = 1675814400.

The previous prime is 2128897171. The next prime is 2128897187. The reversal of 2128897175 is 5717988212.

It is not a de Polignac number, because 2128897175 - 2² = 2128897171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128897171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 949706 + ... + 951944.

It is an arithmetic number, because the mean of its divisors is an integer number (111763680).

Almost surely, 2^2128897175 is an apocalyptic number.

2128897175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2128897175 is a deficient number, since it is larger than the sum of its proper divisors (553431145).

2128897175 is a wasteful number, since it uses less digits than its factorization.

2128897175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843 (or 2838 counting only the distinct ones).

The product of its digits is 564480, while the sum is 50.

The square root of 2128897175 is about 46139.9737212756. The cubic root of 2128897175 is about 1286.4262553037.

The spelling of 2128897175 in words is "two billion, one hundred twenty-eight million, eight hundred ninety-seven thousand, one hundred seventy-five".