28287278282 has 16 divisors (see below), whose sum is σ = 45269813952. Its totient is φ = 13210042560.

The previous prime is 28287278251. The next prime is 28287278287.

28287278282 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28287278282² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28287278287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3171038 + ... + 3179945.

It is an arithmetic number, because the mean of its divisors is an integer number (2829363372).

Almost surely, 2^28287278282 is an apocalyptic number.

28287278282 is a deficient number, since it is larger than the sum of its proper divisors (16982535670).

28287278282 is a wasteful number, since it uses less digits than its factorization.

28287278282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351133.

The product of its digits is 6422528, while the sum is 56.

The spelling of 28287278282 in words is "twenty-eight billion, two hundred eighty-seven million, two hundred seventy-eight thousand, two hundred eighty-two".