28109075814 has 16 divisors (see below), whose sum is σ = 62464613040. Its totient is φ = 9369691920.

The previous prime is 28109075807. The next prime is 28109075837. The reversal of 28109075814 is 41857090182.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28109075814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260269167 + ... + 260269274.

It is an arithmetic number, because the mean of its divisors is an integer number (3904038315).

Almost surely, 2^28109075814 is an apocalyptic number.

28109075814 is an abundant number, since it is smaller than the sum of its proper divisors (34355537226).

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

28109075814 is a wasteful number, since it uses less digits than its factorization.

28109075814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520538452 (or 520538446 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 28109075814 in words is "twenty-eight billion, one hundred nine million, seventy-five thousand, eight hundred fourteen".