9955126219 has 2 divisors, whose sum is σ = 9955126220. Its totient is φ = 9955126218.

The previous prime is 9955126217. The next prime is 9955126249. The reversal of 9955126219 is 9126215599.

It is a weak prime.

It is an emirp because it is prime and its reverse (9126215599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9955126219 - 2¹ = 9955126217 is a prime.

It is a super-2 number, since 2×9955126219² (a number of 21 digits) contains 22 as substring.

Together with 9955126217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9955126211) 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, 4977563109 + 4977563110.

It is an arithmetic number, because the mean of its divisors is an integer number (4977563110).

Almost surely, 2^9955126219 is an apocalyptic number.

9955126219 is a deficient number, since it is larger than the sum of its proper divisors (1).

9955126219 is an equidigital number, since it uses as much as digits as its factorization.

9955126219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 437400, while the sum is 49.

The square root of 9955126219 is about 99775.3788216311. The cubic root of 9955126219 is about 2151.2072699737.

The spelling of 9955126219 in words is "nine billion, nine hundred fifty-five million, one hundred twenty-six thousand, two hundred nineteen".