28508222630480 has 40 divisors (see below), whose sum is σ = 66787584187104. Its totient is φ = 11316241040000.

The previous prime is 28508222630453. The next prime is 28508222630509. The reversal of 28508222630480 is 8403622280582.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1360114646 + ... + 1360135605.

Almost surely, 2^{28508222630480} is an apocalyptic number.

28508222630480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28508222630480 is an abundant number, since it is smaller than the sum of its proper divisors (38279361556624).

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

28508222630480 is a wasteful number, since it uses less digits than its factorization.

28508222630480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720250395 (or 2720250389 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 50.

The spelling of 28508222630480 in words is "twenty-eight trillion, five hundred eight billion, two hundred twenty-two million, six hundred thirty thousand, four hundred eighty".