28242753133 has 12 divisors (see below), whose sum is σ = 33392405532. Its totient is φ = 23811217920.

The previous prime is 28242753109. The next prime is 28242753137. The reversal of 28242753133 is 33135724282.

It can be written as a sum of positive squares in 2 ways, for example, as 419512324 + 27823240809 = 20482^2 + 166803^2 .

It is not a de Polignac number, because 28242753133 - 2¹⁷ = 28242622061 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 (28242753137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4721460 + ... + 4727437.

It is an arithmetic number, because the mean of its divisors is an integer number (2782700461).

Almost surely, 2^28242753133 is an apocalyptic number.

It is an amenable number.

28242753133 is a deficient number, since it is larger than the sum of its proper divisors (5149652399).

28242753133 is an equidigital number, since it uses as much as digits as its factorization.

28242753133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9448972 (or 9448965 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The spelling of 28242753133 in words is "twenty-eight billion, two hundred forty-two million, seven hundred fifty-three thousand, one hundred thirty-three".