28286959433 has 4 divisors (see below), whose sum is σ = 28325237520. Its totient is φ = 28248681348.

The previous prime is 28286959387. The next prime is 28286959487. The reversal of 28286959433 is 33495968282.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28286959433 - 2⁶ = 28286959369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28286959033) 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, 19137935 + ... + 19139412.

It is an arithmetic number, because the mean of its divisors is an integer number (7081309380).

Almost surely, 2^28286959433 is an apocalyptic number.

It is an amenable number.

28286959433 is a deficient number, since it is larger than the sum of its proper divisors (38278087).

28286959433 is an equidigital number, since it uses as much as digits as its factorization.

28286959433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38278086.

The product of its digits is 22394880, while the sum is 59.

The spelling of 28286959433 in words is "twenty-eight billion, two hundred eighty-six million, nine hundred fifty-nine thousand, four hundred thirty-three".