28675430784000 has 4928 divisors, whose sum is σ = 144481615229952. Its totient is φ = 5482266624000.

The previous prime is 28675430783971. The next prime is 28675430784031. The reversal of 28675430784000 is 48703457682.

28675430784000 is a `hidden beast` number, since 28 + 6 + 7 + 543 + 0 + 78 + 4 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (4928).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 93405311847 + ... + 93405312153.

It is an arithmetic number, because the mean of its divisors is an integer number (29318509584).

Almost surely, 2^{28675430784000} is an apocalyptic number.

28675430784000 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 28675430784000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72240807614976).

28675430784000 is an abundant number, since it is smaller than the sum of its proper divisors (115806184445952).

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

28675430784000 is a wasteful number, since it uses less digits than its factorization.

28675430784000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 28675430784000 in words is "twenty-eight trillion, six hundred seventy-five billion, four hundred thirty million, seven hundred eighty-four thousand".