28545124773 has 16 divisors (see below), whose sum is σ = 42485769216. Its totient is φ = 16897747440.

The previous prime is 28545124759. The next prime is 28545124801. The reversal of 28545124773 is 37742154582.

It is a happy number.

It is not a de Polignac number, because 28545124773 - 2¹³ = 28545116581 is a prime.

It is a super-2 number, since 2×28545124773² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28545124723) 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, 10056765 + ... + 10059602.

It is an arithmetic number, because the mean of its divisors is an integer number (2655360576).

Almost surely, 2^28545124773 is an apocalyptic number.

It is an amenable number.

28545124773 is a deficient number, since it is larger than the sum of its proper divisors (13940644443).

28545124773 is a wasteful number, since it uses less digits than its factorization.

28545124773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20116424.

The product of its digits is 1881600, while the sum is 48.

The spelling of 28545124773 in words is "twenty-eight billion, five hundred forty-five million, one hundred twenty-four thousand, seven hundred seventy-three".