28112342205 has 16 divisors (see below), whose sum is σ = 45150779520. Its totient is φ = 14936238528.

The previous prime is 28112342177. The next prime is 28112342231. The reversal of 28112342205 is 50224321182.

It is not a de Polignac number, because 28112342205 - 2¹² = 28112338109 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3559090 + ... + 3566979.

It is an arithmetic number, because the mean of its divisors is an integer number (2821923720).

Almost surely, 2^28112342205 is an apocalyptic number.

It is an amenable number.

28112342205 is a deficient number, since it is larger than the sum of its proper divisors (17038437315).

28112342205 is a wasteful number, since it uses less digits than its factorization.

28112342205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7126340.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 28112342205 its reverse (50224321182), we get a palindrome (78336663387).

The spelling of 28112342205 in words is "twenty-eight billion, one hundred twelve million, three hundred forty-two thousand, two hundred five".