28210013668229 has 2 divisors, whose sum is σ = 28210013668230. Its totient is φ = 28210013668228.

The previous prime is 28210013668181. The next prime is 28210013668259. The reversal of 28210013668229 is 92286631001282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16283662231204 + 11926351437025 = 4035302^2 + 3453455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28210013668229 is a prime.

It is a super-3 number, since 3×28210013668229³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28210013668259) 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 as a sum of consecutive naturals, namely, 14105006834114 + 14105006834115.

It is an arithmetic number, because the mean of its divisors is an integer number (14105006834115).

Almost surely, 2^{28210013668229} is an apocalyptic number.

It is an amenable number.

28210013668229 is a deficient number, since it is larger than the sum of its proper divisors (1).

28210013668229 is an equidigital number, since it uses as much as digits as its factorization.

28210013668229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 28210013668229 in words is "twenty-eight trillion, two hundred ten billion, thirteen million, six hundred sixty-eight thousand, two hundred twenty-nine".