28227872282 has 8 divisors (see below), whose sum is σ = 42342783636. Its totient is φ = 14113611072.

The previous prime is 28227872263. The next prime is 28227872293.

28227872282 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 27145528081 + 1082344201 = 164759^2 + 32899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28227872282.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33503 + ... + 239954.

Almost surely, 2^28227872282 is an apocalyptic number.

28227872282 is a deficient number, since it is larger than the sum of its proper divisors (14114911354).

28227872282 is a wasteful number, since it uses less digits than its factorization.

28227872282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325072.

The product of its digits is 1605632, while the sum is 50.

The spelling of 28227872282 in words is "twenty-eight billion, two hundred twenty-seven million, eight hundred seventy-two thousand, two hundred eighty-two".