28274705254143 has 16 divisors (see below), whose sum is σ = 44093107609600. Its totient is φ = 17857708581240.

The previous prime is 28274705254079. The next prime is 28274705254151. The reversal of 28274705254143 is 34145250747282.

28274705254143 is a `hidden beast` number, since 2 + 8 + 2 + 7 + 4 + 7 + 0 + 52 + 541 + 43 = 666.

It is not a de Polignac number, because 28274705254143 - 2⁶ = 28274705254079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28274705254143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28274705454143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27558191743 + ... + 27558192768.

It is an arithmetic number, because the mean of its divisors is an integer number (2755819225600).

Almost surely, 2^{28274705254143} is an apocalyptic number.

28274705254143 is a deficient number, since it is larger than the sum of its proper divisors (15818402355457).

28274705254143 is a wasteful number, since it uses less digits than its factorization.

28274705254143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55116384539 (or 55116384533 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 54.

The spelling of 28274705254143 in words is "twenty-eight trillion, two hundred seventy-four billion, seven hundred five million, two hundred fifty-four thousand, one hundred forty-three".