28278419798016 has 192 divisors, whose sum is σ = 83792224807200. Its totient is φ = 9423352627200.

The previous prime is 28278419797993. The next prime is 28278419798023. The reversal of 28278419798016 is 61089791487282.

28278419798016 is a `hidden beast` number, since 282 + 7 + 84 + 197 + 9 + 80 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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

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 15 ways as a sum of consecutive naturals, for example, 191305576 + ... + 191453336.

Almost surely, 2^{28278419798016} 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 28278419798016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41896112403600).

28278419798016 is an abundant number, since it is smaller than the sum of its proper divisors (55513805009184).

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

28278419798016 is a wasteful number, since it uses less digits than its factorization.

28278419798016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151253 (or 151227 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 72.

The spelling of 28278419798016 in words is "twenty-eight trillion, two hundred seventy-eight billion, four hundred nineteen million, seven hundred ninety-eight thousand, sixteen".