Forty
Forty (40) has the letters placed in alphabetical order.
op jkl nm (although backwards) fgh
The number that, when written out, has its letters arranged in reverse alphabetical order is "forty." The letters in "forty" are f, o, r, t, and y, which appear in the reverse order of their alphabetical arrangement.
Eight is the only single digit number to be spelled with all of its letters in alphabetical order. Eighty is another such number, but it is two digits. I'm not sure if there are others.
Forty = 40.
Forty (40) has the letters placed in alphabetical order.
The only number that meets that criteria is forty. The rest of the numbers do not go in alphabetical order, for example eight, the i comes after the h.
Forty
phones have a number pad with matching letters in alphabetical order. forget the numbers are there and punch in you words using these letters.
Aegilops is the longest word whose letters are in alphabetical order.
The letters of the word, "sponged," appear in reverse alphabetical order.
A keyboard where the letters are in alphabetical order.