28355184000 has 1792 divisors, whose sum is σ = 131482128960. Its totient is φ = 5971968000.

The previous prime is 28355183993. The next prime is 28355184059. The reversal of 28355184000 is 48155382.

It is a happy number.

28355184000 is a `hidden beast` number, since 28 + 3 + 551 + 84 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 1667951992 + ... + 1667952008.

Almost surely, 2^28355184000 is an apocalyptic number.

28355184000 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 28355184000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65741064480).

28355184000 is an abundant number, since it is smaller than the sum of its proper divisors (103126944960).

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

28355184000 is a wasteful number, since it uses less digits than its factorization.

28355184000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 28355184000 in words is "twenty-eight billion, three hundred fifty-five million, one hundred eighty-four thousand".