28033980000 has 480 divisors, whose sum is σ = 100163137536. Its totient is φ = 6822144000.

The previous prime is 28033979917. The next prime is 28033980049. The reversal of 28033980000 is 8933082.

It is a tau number, because it is divible by the number of its divisors (480).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 99059859 + ... + 99060141.

Almost surely, 2^28033980000 is an apocalyptic number.

28033980000 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 28033980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50081568768).

28033980000 is an abundant number, since it is smaller than the sum of its proper divisors (72129157536).

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

28033980000 is a wasteful number, since it uses less digits than its factorization.

28033980000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 28033980000 in words is "twenty-eight billion, thirty-three million, nine hundred eighty thousand".