28265001345844 has 24 divisors (see below), whose sum is σ = 50002294576640. Its totient is φ = 13978798269696.

The previous prime is 28265001345827. The next prime is 28265001345863. The reversal of 28265001345844 is 44854310056282.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28265001345791 and 28265001345800.

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, 20171604 + ... + 21527275.

Almost surely, 2^{28265001345844} is an apocalyptic number.

It is an amenable number.

28265001345844 is a deficient number, since it is larger than the sum of its proper divisors (21737293230796).

28265001345844 is a wasteful number, since it uses less digits than its factorization.

28265001345844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41700727 (or 41700725 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 52.

The spelling of 28265001345844 in words is "twenty-eight trillion, two hundred sixty-five billion, one million, three hundred forty-five thousand, eight hundred forty-four".