28285105260 has 24 divisors (see below), whose sum is σ = 79198294896. Its totient is φ = 7542694720.

The previous prime is 28285105259. The next prime is 28285105267. The reversal of 28285105260 is 6250158282.

It is not an unprimeable number, because it can be changed into a prime (28285105267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235709151 + ... + 235709270.

It is an arithmetic number, because the mean of its divisors is an integer number (3299928954).

Almost surely, 2^28285105260 is an apocalyptic number.

28285105260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28285105260 is an abundant number, since it is smaller than the sum of its proper divisors (50913189636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28285105260 is a wasteful number, since it uses less digits than its factorization.

28285105260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471418433 (or 471418431 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 28285105260 in words is "twenty-eight billion, two hundred eighty-five million, one hundred five thousand, two hundred sixty".