22418493893 has 2 divisors, whose sum is σ = 22418493894. Its totient is φ = 22418493892.

The previous prime is 22418493887. The next prime is 22418493899. The reversal of 22418493893 is 39839481422.

It is a balanced prime because it is at equal distance from previous prime (22418493887) and next prime (22418493899).

It can be written as a sum of positive squares in only one way, i.e., 19387220644 + 3031273249 = 139238^2 + 55057^2 .

It is a cyclic number.

It is not a de Polignac number, because 22418493893 - 2¹⁴ = 22418477509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22418493899) 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, 11209246946 + 11209246947.

It is an arithmetic number, because the mean of its divisors is an integer number (11209246947).

Almost surely, 2^22418493893 is an apocalyptic number.

It is an amenable number.

22418493893 is a deficient number, since it is larger than the sum of its proper divisors (1).

22418493893 is an equidigital number, since it uses as much as digits as its factorization.

22418493893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 53.

The spelling of 22418493893 in words is "twenty-two billion, four hundred eighteen million, four hundred ninety-three thousand, eight hundred ninety-three".