28188412000 has 192 divisors, whose sum is σ = 79786377216. Its totient is φ = 9587289600.

The previous prime is 28188411991. The next prime is 28188412073. The reversal of 28188412000 is 21488182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3552037 + ... + 3559963.

It is an arithmetic number, because the mean of its divisors is an integer number (415554048).

Almost surely, 2^28188412000 is an apocalyptic number.

28188412000 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 28188412000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39893188608).

28188412000 is an abundant number, since it is smaller than the sum of its proper divisors (51597965216).

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

28188412000 is a wasteful number, since it uses less digits than its factorization.

28188412000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8086 (or 8068 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 34.

The spelling of 28188412000 in words is "twenty-eight billion, one hundred eighty-eight million, four hundred twelve thousand".