12128465175 has 24 divisors (see below), whose sum is σ = 20056168704. Its totient is φ = 6467297760.

The previous prime is 12128465137. The next prime is 12128465183. The reversal of 12128465175 is 57156482121.

It is a happy number.

It is not a de Polignac number, because 12128465175 - 2⁸ = 12128464919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502944 + ... + 526506.

It is an arithmetic number, because the mean of its divisors is an integer number (835673696).

Almost surely, 2^12128465175 is an apocalyptic number.

12128465175 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12128465175 is a deficient number, since it is larger than the sum of its proper divisors (7927703529).

12128465175 is a wasteful number, since it uses less digits than its factorization.

12128465175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30439 (or 30434 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The spelling of 12128465175 in words is "twelve billion, one hundred twenty-eight million, four hundred sixty-five thousand, one hundred seventy-five".