28123742688573 has 16 divisors (see below), whose sum is σ = 44237653630976. Its totient is φ = 15552300103920.

The previous prime is 28123742688557. The next prime is 28123742688577. The reversal of 28123742688573 is 37588624732182.

It is not a de Polignac number, because 28123742688573 - 2⁴ = 28123742688557 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 (28123742688577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21600416161 + ... + 21600417462.

It is an arithmetic number, because the mean of its divisors is an integer number (2764853351936).

Almost surely, 2^{28123742688573} is an apocalyptic number.

It is an amenable number.

28123742688573 is a deficient number, since it is larger than the sum of its proper divisors (16113910942403).

28123742688573 is a wasteful number, since it uses less digits than its factorization.

28123742688573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43200833664.

The product of its digits is 216760320, while the sum is 66.

The spelling of 28123742688573 in words is "twenty-eight trillion, one hundred twenty-three billion, seven hundred forty-two million, six hundred eighty-eight thousand, five hundred seventy-three".