28350535133 has 2 divisors, whose sum is σ = 28350535134. Its totient is φ = 28350535132.

The previous prime is 28350535093. The next prime is 28350535139. The reversal of 28350535133 is 33153505382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26573238169 + 1777296964 = 163013^2 + 42158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28350535133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28350535139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14175267566 + 14175267567.

It is an arithmetic number, because the mean of its divisors is an integer number (14175267567).

Almost surely, 2^28350535133 is an apocalyptic number.

It is an amenable number.

28350535133 is a deficient number, since it is larger than the sum of its proper divisors (1).

28350535133 is an equidigital number, since it uses as much as digits as its factorization.

28350535133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 28350535133 in words is "twenty-eight billion, three hundred fifty million, five hundred thirty-five thousand, one hundred thirty-three".