28550585713 has 12 divisors (see below), whose sum is σ = 30955859100. Its totient is φ = 26320172736.

The previous prime is 28550585671. The next prime is 28550585731. The reversal of 28550585713 is 31758505582.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 14048886784 + 14501698929 = 118528^2 + 120423^2 .

It is not a de Polignac number, because 28550585713 - 2¹⁷ = 28550454641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28550585813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21363 + ... + 239911.

It is an arithmetic number, because the mean of its divisors is an integer number (2579654925).

Almost surely, 2^28550585713 is an apocalyptic number.

It is an amenable number.

28550585713 is a deficient number, since it is larger than the sum of its proper divisors (2405273387).

28550585713 is a wasteful number, since it uses less digits than its factorization.

28550585713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219348 (or 219335 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 49.

The spelling of 28550585713 in words is "twenty-eight billion, five hundred fifty million, five hundred eighty-five thousand, seven hundred thirteen".