28255984080 has 40 divisors (see below), whose sum is σ = 87593551392. Its totient is φ = 7534929024.

The previous prime is 28255984061. The next prime is 28255984093. The reversal of 28255984080 is 8048955282.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58866394 + ... + 58866873.

Almost surely, 2^28255984080 is an apocalyptic number.

28255984080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28255984080 is an abundant number, since it is smaller than the sum of its proper divisors (59337567312).

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

28255984080 is a wasteful number, since it uses less digits than its factorization.

28255984080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117733283 (or 117733277 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 51.

The spelling of 28255984080 in words is "twenty-eight billion, two hundred fifty-five million, nine hundred eighty-four thousand, eighty".