28205433450282 has 64 divisors (see below), whose sum is σ = 64245214281600. Its totient is φ = 8176663514880.

The previous prime is 28205433450221. The next prime is 28205433450323.

28205433450282 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28205433450282² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67389453 + ... + 67806704.

It is an arithmetic number, because the mean of its divisors is an integer number (1003831473150).

Almost surely, 2^{28205433450282} is an apocalyptic number.

28205433450282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28205433450282 is an abundant number, since it is smaller than the sum of its proper divisors (36039780831318).

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

28205433450282 is a wasteful number, since it uses less digits than its factorization.

28205433450282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135196311.

The product of its (nonzero) digits is 3686400, while the sum is 48.

The spelling of 28205433450282 in words is "twenty-eight trillion, two hundred five billion, four hundred thirty-three million, four hundred fifty thousand, two hundred eighty-two".