28994375364224 has 256 divisors, whose sum is σ = 61396667228160. Its totient is φ = 13617212313600.

The previous prime is 28994375364223. The next prime is 28994375364257. The reversal of 28994375364224 is 42246357349982.

It is a super-2 number, since 2×28994375364224² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28994375364223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35315925734 + ... + 35315926554.

It is an arithmetic number, because the mean of its divisors is an integer number (239830731360).

Almost surely, 2^{28994375364224} 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 28994375364224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30698333614080).

28994375364224 is an abundant number, since it is smaller than the sum of its proper divisors (32402291863936).

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

28994375364224 is a wasteful number, since it uses less digits than its factorization.

28994375364224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959 (or 1947 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 68.

The spelling of 28994375364224 in words is "twenty-eight trillion, nine hundred ninety-four billion, three hundred seventy-five million, three hundred sixty-four thousand, two hundred twenty-four".