28255938184665 has 96 divisors (see below), whose sum is σ = 49672477895040. Its totient is φ = 14857374025728.

The previous prime is 28255938184651. The next prime is 28255938184723. The reversal of 28255938184665 is 56648183955282.

28255938184665 is a `hidden beast` number, since 2 + 8 + 2 + 559 + 3 + 8 + 1 + 8 + 4 + 6 + 65 = 666.

It is not a de Polignac number, because 28255938184665 - 2¹¹ = 28255938182617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28255938184593 and 28255938184602.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 892944334 + ... + 892975976.

It is an arithmetic number, because the mean of its divisors is an integer number (517421644740).

Almost surely, 2^{28255938184665} is an apocalyptic number.

It is an amenable number.

28255938184665 is a deficient number, since it is larger than the sum of its proper divisors (21416539710375).

28255938184665 is a wasteful number, since it uses less digits than its factorization.

28255938184665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32663 (or 32660 counting only the distinct ones).

The product of its digits is 995328000, while the sum is 72.

The spelling of 28255938184665 in words is "twenty-eight trillion, two hundred fifty-five billion, nine hundred thirty-eight million, one hundred eighty-four thousand, six hundred sixty-five".