4163128745 has 4 divisors (see below), whose sum is σ = 4995754500. Its totient is φ = 3330502992.

The previous prime is 4163128733. The next prime is 4163128757. The reversal of 4163128745 is 5478213614.

4163128745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5478213614 = 2 ⋅2739106807.

It is an interprime number because it is at equal distance from previous prime (4163128733) and next prime (4163128757).

It can be written as a sum of positive squares in 2 ways, for example, as 3186941209 + 976187536 = 56453^2 + 31244^2 .

It is a cyclic number.

It is not a de Polignac number, because 4163128745 - 2⁶ = 4163128681 is a prime.

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, 416312870 + ... + 416312879.

It is an arithmetic number, because the mean of its divisors is an integer number (1248938625).

Almost surely, 2^4163128745 is an apocalyptic number.

It is an amenable number.

4163128745 is a deficient number, since it is larger than the sum of its proper divisors (832625755).

4163128745 is an equidigital number, since it uses as much as digits as its factorization.

4163128745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832625754.

The product of its digits is 161280, while the sum is 41.

The square root of 4163128745 is about 64522.3119936042. The cubic root of 4163128745 is about 1608.6934019343.

The spelling of 4163128745 in words is "four billion, one hundred sixty-three million, one hundred twenty-eight thousand, seven hundred forty-five".