28104856416 has 960 divisors, whose sum is σ = 110895257088. Its totient is φ = 6772211712.

The previous prime is 28104856393. The next prime is 28104856469. The reversal of 28104856416 is 61465840182.

It is a happy number.

28104856416 is a `hidden beast` number, since 2 + 81 + 0 + 4 + 8 + 564 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 172422351 + ... + 172422513.

Almost surely, 2^28104856416 is an apocalyptic number.

28104856416 is a gapful number since it is divisible by the number (26) 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 28104856416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55447628544).

28104856416 is an abundant number, since it is smaller than the sum of its proper divisors (82790400672).

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

28104856416 is a wasteful number, since it uses less digits than its factorization.

28104856416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 28104856416 in words is "twenty-eight billion, one hundred four million, eight hundred fifty-six thousand, four hundred sixteen".