28316126213 has 2 divisors, whose sum is σ = 28316126214. Its totient is φ = 28316126212.

The previous prime is 28316126161. The next prime is 28316126221. The reversal of 28316126213 is 31262161382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27943134244 + 372991969 = 167162^2 + 19313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28316126213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28316126243) 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, 14158063106 + 14158063107.

It is an arithmetic number, because the mean of its divisors is an integer number (14158063107).

Almost surely, 2^28316126213 is an apocalyptic number.

It is an amenable number.

28316126213 is a deficient number, since it is larger than the sum of its proper divisors (1).

28316126213 is an equidigital number, since it uses as much as digits as its factorization.

28316126213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

Adding to 28316126213 its reverse (31262161382), we get a palindrome (59578287595).

The spelling of 28316126213 in words is "twenty-eight billion, three hundred sixteen million, one hundred twenty-six thousand, two hundred thirteen".