28111214814 has 32 divisors (see below), whose sum is σ = 56628633600. Its totient is φ = 9302911200.

The previous prime is 28111214797. The next prime is 28111214819. The reversal of 28111214814 is 41841211182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28111214819) 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 15 ways as a sum of consecutive naturals, for example, 524899 + ... + 575969.

It is an arithmetic number, because the mean of its divisors is an integer number (1769644800).

Almost surely, 2^28111214814 is an apocalyptic number.

28111214814 is an abundant number, since it is smaller than the sum of its proper divisors (28517418786).

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

28111214814 is a wasteful number, since it uses less digits than its factorization.

28111214814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51736.

The product of its digits is 4096, while the sum is 33.

Adding to 28111214814 its reverse (41841211182), we get a palindrome (69952425996).

The spelling of 28111214814 in words is "twenty-eight billion, one hundred eleven million, two hundred fourteen thousand, eight hundred fourteen".