28601571443173 has 4 divisors (see below), whose sum is σ = 29210115516480. Its totient is φ = 27993027369868.

The previous prime is 28601571443171. The next prime is 28601571443197. The reversal of 28601571443173 is 37134417510682.

It is a happy number.

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 28601571443173 - 2¹ = 28601571443171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28601571443173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28601571443171) 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, 304272036583 + ... + 304272036676.

It is an arithmetic number, because the mean of its divisors is an integer number (7302528879120).

Almost surely, 2^{28601571443173} is an apocalyptic number.

It is an amenable number.

28601571443173 is a deficient number, since it is larger than the sum of its proper divisors (608544073307).

28601571443173 is an equidigital number, since it uses as much as digits as its factorization.

28601571443173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608544073306.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 28601571443173 in words is "twenty-eight trillion, six hundred one billion, five hundred seventy-one million, four hundred forty-three thousand, one hundred seventy-three".