28974521886912 has 672 divisors, whose sum is σ = 101688463851520. Its totient is φ = 8004814709760.

The previous prime is 28974521886889. The next prime is 28974521887009. The reversal of 28974521886912 is 21968812547982.

28974521886912 is a `hidden beast` number, since 2 + 8 + 9 + 7 + 4 + 521 + 8 + 8 + 6 + 91 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (72).

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 95 ways as a sum of consecutive naturals, for example, 5288283789 + ... + 5288289267.

Almost surely, 2^{28974521886912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28974521886912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50844231925760).

28974521886912 is an abundant number, since it is smaller than the sum of its proper divisors (72713941964608).

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

28974521886912 is a wasteful number, since it uses less digits than its factorization.

28974521886912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7111 (or 7089 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 72.

The spelling of 28974521886912 in words is "twenty-eight trillion, nine hundred seventy-four billion, five hundred twenty-one million, eight hundred eighty-six thousand, nine hundred twelve".