28944904273920 has 360 divisors, whose sum is σ = 100955270126256. Its totient is φ = 7671255662592.

The previous prime is 28944904273913. The next prime is 28944904273969. The reversal of 28944904273920 is 2937240944982.

28944904273920 is a `hidden beast` number, since 2 + 8 + 94 + 4 + 90 + 427 + 39 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120056214 + ... + 120297066.

Almost surely, 2^{28944904273920} is an apocalyptic number.

28944904273920 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 28944904273920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50477635063128).

28944904273920 is an abundant number, since it is smaller than the sum of its proper divisors (72010365852336).

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

28944904273920 is a wasteful number, since it uses less digits than its factorization.

28944904273920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241055 (or 241026 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 28944904273920 in words is "twenty-eight trillion, nine hundred forty-four billion, nine hundred four million, two hundred seventy-three thousand, nine hundred twenty".