6172145873 has 8 divisors (see below), whose sum is σ = 6185448360. Its totient is φ = 6158857600.

The previous prime is 6172145857. The next prime is 6172145879. The reversal of 6172145873 is 3785412716.

It can be written as a sum of positive squares in 4 ways, for example, as 4870849 + 6167275024 = 2207^2 + 78532^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6172145873 - 2⁴ = 6172145857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6172145879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1397693 + ... + 1402101.

It is an arithmetic number, because the mean of its divisors is an integer number (773181045).

Almost surely, 2^6172145873 is an apocalyptic number.

It is an amenable number.

6172145873 is a deficient number, since it is larger than the sum of its proper divisors (13302487).

6172145873 is a wasteful number, since it uses less digits than its factorization.

6172145873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7107.

The product of its digits is 282240, while the sum is 44.

The square root of 6172145873 is about 78563.0057533442. The cubic root of 6172145873 is about 1834.3353148017.

The spelling of 6172145873 in words is "six billion, one hundred seventy-two million, one hundred forty-five thousand, eight hundred seventy-three".