4172645173 has 4 divisors (see below), whose sum is σ = 4188511008. Its totient is φ = 4156779340.

The previous prime is 4172645171. The next prime is 4172645209. The reversal of 4172645173 is 3715462714.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3715462714 = 2 ⋅1857731357.

It is a cyclic number.

It is not a de Polignac number, because 4172645173 - 2¹ = 4172645171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4172645171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7932523 + ... + 7933048.

It is an arithmetic number, because the mean of its divisors is an integer number (1047127752).

Almost surely, 2^4172645173 is an apocalyptic number.

It is an amenable number.

4172645173 is a deficient number, since it is larger than the sum of its proper divisors (15865835).

4172645173 is a wasteful number, since it uses less digits than its factorization.

4172645173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15865834.

The product of its digits is 141120, while the sum is 40.

The square root of 4172645173 is about 64596.0151479950. The cubic root of 4172645173 is about 1609.9182311262.

The spelling of 4172645173 in words is "four billion, one hundred seventy-two million, six hundred forty-five thousand, one hundred seventy-three".