28288824535 has 4 divisors (see below), whose sum is σ = 33946589448. Its totient is φ = 22631059624.

The previous prime is 28288824533. The next prime is 28288824547. The reversal of 28288824535 is 53542888282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28288824535 - 2¹ = 28288824533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28288824533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2828882449 + ... + 2828882458.

It is an arithmetic number, because the mean of its divisors is an integer number (8486647362).

Almost surely, 2^28288824535 is an apocalyptic number.

28288824535 is a deficient number, since it is larger than the sum of its proper divisors (5657764913).

28288824535 is an equidigital number, since it uses as much as digits as its factorization.

28288824535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657764912.

The product of its digits is 9830400, while the sum is 55.

The spelling of 28288824535 in words is "twenty-eight billion, two hundred eighty-eight million, eight hundred twenty-four thousand, five hundred thirty-five".