28704080000 has 120 divisors (see below), whose sum is σ = 71576506155. Its totient is φ = 11462464000.

The previous prime is 28704079933. The next prime is 28704080011. The reversal of 28704080000 is 8040782.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 6636383296 + 22067696704 = 81464^2 + 148552^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=119800.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 47919701 + ... + 47920299.

Almost surely, 2^28704080000 is an apocalyptic number.

28704080000 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 28704080000

28704080000 is an abundant number, since it is smaller than the sum of its proper divisors (42872426155).

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

28704080000 is an frugal number, since it uses more digits than its factorization.

28704080000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The spelling of 28704080000 in words is "twenty-eight billion, seven hundred four million, eighty thousand".