28114185784 has 16 divisors (see below), whose sum is σ = 52749007920. Its totient is φ = 14047783680.

The previous prime is 28114185773. The next prime is 28114185787. The reversal of 28114185784 is 48758141182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114185787) 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 3 ways as a sum of consecutive naturals, for example, 1150809 + ... + 1174984.

It is an arithmetic number, because the mean of its divisors is an integer number (3296812995).

Almost surely, 2^28114185784 is an apocalyptic number.

It is an amenable number.

28114185784 is a deficient number, since it is larger than the sum of its proper divisors (24634822136).

28114185784 is a wasteful number, since it uses less digits than its factorization.

28114185784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327310 (or 2327306 counting only the distinct ones).

The product of its digits is 573440, while the sum is 49.

The spelling of 28114185784 in words is "twenty-eight billion, one hundred fourteen million, one hundred eighty-five thousand, seven hundred eighty-four".