28719883368 has 384 divisors, whose sum is σ = 95411433600. Its totient is φ = 7965112320.

The previous prime is 28719883343. The next prime is 28719883393. The reversal of 28719883368 is 86338891782.

28719883368 is a `hidden beast` number, since 2 + 8 + 7 + 198 + 83 + 368 = 666.

It is an interprime number because it is at equal distance from previous prime (28719883343) and next prime (28719883393).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16438671 + ... + 16440417.

It is an arithmetic number, because the mean of its divisors is an integer number (248467275).

Almost surely, 2^28719883368 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 28719883368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47705716800).

28719883368 is an abundant number, since it is smaller than the sum of its proper divisors (66691550232).

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

28719883368 is a wasteful number, since it uses less digits than its factorization.

28719883368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1817 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The spelling of 28719883368 in words is "twenty-eight billion, seven hundred nineteen million, eight hundred eighty-three thousand, three hundred sixty-eight".