28159823353 has 2 divisors, whose sum is σ = 28159823354. Its totient is φ = 28159823352.

The previous prime is 28159823317. The next prime is 28159823429. The reversal of 28159823353 is 35332895182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21577259664 + 6582563689 = 146892^2 + 81133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28159823353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28159823297 and 28159823306.

It is not a weakly prime, because it can be changed into another prime (28159853353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14079911676 + 14079911677.

It is an arithmetic number, because the mean of its divisors is an integer number (14079911677).

Almost surely, 2^28159823353 is an apocalyptic number.

It is an amenable number.

28159823353 is a deficient number, since it is larger than the sum of its proper divisors (1).

28159823353 is an equidigital number, since it uses as much as digits as its factorization.

28159823353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 49.

The spelling of 28159823353 in words is "twenty-eight billion, one hundred fifty-nine million, eight hundred twenty-three thousand, three hundred fifty-three".