28728082080000 has 2880 divisors, whose sum is σ = 117811663200000. Its totient is φ = 6960328704000.

The previous prime is 28728082079993. The next prime is 28728082080017. The reversal of 28728082080000 is 8028082782.

It is a tau number, because it is divible by the number of its divisors (2880).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 319 ways as a sum of consecutive naturals, for example, 192805919926 + ... + 192805920074.

It is an arithmetic number, because the mean of its divisors is an integer number (40906827500).

Almost surely, 2^{28728082080000} is an apocalyptic number.

28728082080000 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 28728082080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58905831600000).

28728082080000 is an abundant number, since it is smaller than the sum of its proper divisors (89083581120000).

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

28728082080000 is an frugal number, since it uses more digits than its factorization.

28728082080000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The spelling of 28728082080000 in words is "twenty-eight trillion, seven hundred twenty-eight billion, eighty-two million, eighty thousand".