28232675389 has 2 divisors, whose sum is σ = 28232675390. Its totient is φ = 28232675388.

The previous prime is 28232675363. The next prime is 28232675441. The reversal of 28232675389 is 98357623282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15704350489 + 12528324900 = 125317^2 + 111930^2 .

It is a cyclic number.

It is not a de Polignac number, because 28232675389 - 2⁵ = 28232675357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28232675089) 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 as a sum of consecutive naturals, namely, 14116337694 + 14116337695.

It is an arithmetic number, because the mean of its divisors is an integer number (14116337695).

Almost surely, 2^28232675389 is an apocalyptic number.

It is an amenable number.

28232675389 is a deficient number, since it is larger than the sum of its proper divisors (1).

28232675389 is an equidigital number, since it uses as much as digits as its factorization.

28232675389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 55.

The spelling of 28232675389 in words is "twenty-eight billion, two hundred thirty-two million, six hundred seventy-five thousand, three hundred eighty-nine".