671228175173 has 4 divisors (see below), whose sum is σ = 671298492480. Its totient is φ = 671157857868.

The previous prime is 671228175113. The next prime is 671228175199. The reversal of 671228175173 is 371571822176.

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.

It is a cyclic number.

It is not a de Polignac number, because 671228175173 - 2¹⁶ = 671228109637 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 (671228175113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35144333 + ... + 35163426.

It is an arithmetic number, because the mean of its divisors is an integer number (167824623120).

Almost surely, 2^671228175173 is an apocalyptic number.

It is an amenable number.

671228175173 is a deficient number, since it is larger than the sum of its proper divisors (70317307).

671228175173 is an equidigital number, since it uses as much as digits as its factorization.

671228175173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70317306.

The product of its digits is 987840, while the sum is 50.

The spelling of 671228175173 in words is "six hundred seventy-one billion, two hundred twenty-eight million, one hundred seventy-five thousand, one hundred seventy-three".