287066584402728 has 256 divisors, whose sum is σ = 805851968624640. Its totient is φ = 84616800768000.

The previous prime is 287066584402711. The next prime is 287066584402747. The reversal of 287066584402728 is 827204485660782.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5897351926 + ... + 5897400602.

It is an arithmetic number, because the mean of its divisors is an integer number (3147859252440).

Almost surely, 2^{287066584402728} 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 287066584402728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402925984312320).

287066584402728 is an abundant number, since it is smaller than the sum of its proper divisors (518785384221912).

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

287066584402728 is a wasteful number, since it uses less digits than its factorization.

287066584402728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54868 (or 54864 counting only the distinct ones).

The product of its (nonzero) digits is 578027520, while the sum is 69.

The spelling of 287066584402728 in words is "two hundred eighty-seven trillion, sixty-six billion, five hundred eighty-four million, four hundred two thousand, seven hundred twenty-eight".