28089760000 has 135 divisors (see below), whose sum is σ = 70232433271. Its totient is φ = 11209088000.

The previous prime is 28089759979. The next prime is 28089760087. The reversal of 28089760000 is 6798082.

The square root of 28089760000 is 167600.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 2202237184 + 25887522816 = 46928^2 + 160896^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a Duffinian number.

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, 67039791 + ... + 67040209.

Almost surely, 2^28089760000 is an apocalyptic number.

28089760000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

28089760000 is the 167600-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28089760000

28089760000 is an abundant number, since it is smaller than the sum of its proper divisors (42142673271).

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

28089760000 is an frugal number, since it uses more digits than its factorization.

28089760000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 28089760000 in words is "twenty-eight billion, eighty-nine million, seven hundred sixty thousand".