28528111288 has 16 divisors (see below), whose sum is σ = 53492048280. Its totient is φ = 14263565088.

The previous prime is 28528111267. The next prime is 28528111289. The reversal of 28528111288 is 88211182582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28528111289) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 341470 + ... + 416722.

Almost surely, 2^28528111288 is an apocalyptic number.

It is an amenable number.

28528111288 is a deficient number, since it is larger than the sum of its proper divisors (24963936992).

28528111288 is a wasteful number, since it uses less digits than its factorization.

28528111288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122646 (or 122642 counting only the distinct ones).

The product of its digits is 163840, while the sum is 46.

The spelling of 28528111288 in words is "twenty-eight billion, five hundred twenty-eight million, one hundred eleven thousand, two hundred eighty-eight".