11285728322 has 18 divisors (see below), whose sum is σ = 18610186329. Its totient is φ = 5129125320.

The previous prime is 11285728309. The next prime is 11285728367. The reversal of 11285728322 is 22382758211.

It can be written as a sum of positive squares in 2 ways, for example, as 11265487321 + 20241001 = 106139^2 + 4499^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=75119.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11285728322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1649204 + ... + 1656032.

Almost surely, 2^11285728322 is an apocalyptic number.

11285728322 is a deficient number, since it is larger than the sum of its proper divisors (7324458007).

11285728322 is an frugal number, since it uses more digits than its factorization.

11285728322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13682 (or 6842 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The spelling of 11285728322 in words is "eleven billion, two hundred eighty-five million, seven hundred twenty-eight thousand, three hundred twenty-two".