28585873173 has 32 divisors (see below), whose sum is σ = 46724751360. Its totient is φ = 15296783040.

The previous prime is 28585873111. The next prime is 28585873189. The reversal of 28585873173 is 37137858582.

It is not a de Polignac number, because 28585873173 - 2¹⁰ = 28585872149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28585873193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1438693 + ... + 1458426.

It is an arithmetic number, because the mean of its divisors is an integer number (1460148480).

Almost surely, 2^28585873173 is an apocalyptic number.

28585873173 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28585873173 is a deficient number, since it is larger than the sum of its proper divisors (18138878187).

28585873173 is a wasteful number, since it uses less digits than its factorization.

28585873173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897169.

The product of its digits is 11289600, while the sum is 57.

The spelling of 28585873173 in words is "twenty-eight billion, five hundred eighty-five million, eight hundred seventy-three thousand, one hundred seventy-three".