28032480000 has 1080 divisors, whose sum is σ = 120863911168. Its totient is φ = 6345216000.

The previous prime is 28032479903. The next prime is 28032480011. The reversal of 28032480000 is 8423082.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 272159949 + ... + 272160051.

Almost surely, 2^28032480000 is an apocalyptic number.

28032480000 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 28032480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60431955584).

28032480000 is an abundant number, since it is smaller than the sum of its proper divisors (92831431168).

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

28032480000 is an frugal number, since it uses more digits than its factorization.

28032480000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 28032480000 in words is "twenty-eight billion, thirty-two million, four hundred eighty thousand".