28205540083 has 12 divisors (see below), whose sum is σ = 33348407232. Its totient is φ = 23779843920.

The previous prime is 28205540081. The next prime is 28205540093. The reversal of 28205540083 is 38004550282.

It is not a de Polignac number, because 28205540083 - 2¹ = 28205540081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28205540081) 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, 4715235 + ... + 4721212.

It is an arithmetic number, because the mean of its divisors is an integer number (2779033936).

Almost surely, 2^28205540083 is an apocalyptic number.

28205540083 is a deficient number, since it is larger than the sum of its proper divisors (5142867149).

28205540083 is an equidigital number, since it uses as much as digits as its factorization.

28205540083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9436522 (or 9436515 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 28205540083 in words is "twenty-eight billion, two hundred five million, five hundred forty thousand, eighty-three".