216226396273 has 2 divisors, whose sum is σ = 216226396274. Its totient is φ = 216226396272.

The previous prime is 216226396237. The next prime is 216226396279. The reversal of 216226396273 is 372693622612.

Together with previous prime (216226396237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134900474944 + 81325921329 = 367288^2 + 285177^2 .

It is a cyclic number.

It is not a de Polignac number, because 216226396273 - 2²⁵ = 216192841841 is a prime.

It is not a weakly prime, because it can be changed into another prime (216226396279) 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, 108113198136 + 108113198137.

It is an arithmetic number, because the mean of its divisors is an integer number (108113198137).

Almost surely, 2^216226396273 is an apocalyptic number.

It is an amenable number.

216226396273 is a deficient number, since it is larger than the sum of its proper divisors (1).

216226396273 is an equidigital number, since it uses as much as digits as its factorization.

216226396273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 49.

The spelling of 216226396273 in words is "two hundred sixteen billion, two hundred twenty-six million, three hundred ninety-six thousand, two hundred seventy-three".