28556480000 has 200 divisors, whose sum is σ = 71791619328. Its totient is φ = 11343872000.

The previous prime is 28556479999. The next prime is 28556480011. The reversal of 28556480000 is 8465582.

It is a tau number, because it is divible by the number of its divisors (200).

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 19 ways as a sum of consecutive naturals, for example, 74559809 + ... + 74560191.

Almost surely, 2^28556480000 is an apocalyptic number.

28556480000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28556480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35895809664).

28556480000 is an abundant number, since it is smaller than the sum of its proper divisors (43235139328).

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

28556480000 is an frugal number, since it uses more digits than its factorization.

28556480000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 28556480000 in words is "twenty-eight billion, five hundred fifty-six million, four hundred eighty thousand".