219768422405 has 12 divisors (see below), whose sum is σ = 306778777740. Its totient is φ = 150698346624.

The previous prime is 219768422333. The next prime is 219768422429. The reversal of 219768422405 is 504224867912.

It can be written as a sum of positive squares in 2 ways, for example, as 123319666561 + 96448755844 = 351169^2 + 310562^2 .

It is not a de Polignac number, because 219768422405 - 2¹⁶ = 219768356869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448506740 + ... + 448507229.

It is an arithmetic number, because the mean of its divisors is an integer number (25564898145).

Almost surely, 2^219768422405 is an apocalyptic number.

It is an amenable number.

219768422405 is a deficient number, since it is larger than the sum of its proper divisors (87010355335).

219768422405 is an equidigital number, since it uses as much as digits as its factorization.

219768422405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897013988 (or 897013981 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 219768422405 in words is "two hundred nineteen billion, seven hundred sixty-eight million, four hundred twenty-two thousand, four hundred five".