219768068 has 12 divisors (see below), whose sum is σ = 414178380. Its totient is φ = 101431392.

The previous prime is 219768067. The next prime is 219768071. The reversal of 219768068 is 860867912.

It can be written as a sum of positive squares in 2 ways, for example, as 132756484 + 87011584 = 11522^2 + 9328^2 .

It is not an unprimeable number, because it can be changed into a prime (219768067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2113103 + ... + 2113206.

It is an arithmetic number, because the mean of its divisors is an integer number (34514865).

Almost surely, 2^219768068 is an apocalyptic number.

It is an amenable number.

219768068 is a deficient number, since it is larger than the sum of its proper divisors (194410312).

219768068 is a wasteful number, since it uses less digits than its factorization.

219768068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226326 (or 4226324 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 219768068 is about 14824.5764863621. The cubic root of 219768068 is about 603.4688582406.

The spelling of 219768068 in words is "two hundred nineteen million, seven hundred sixty-eight thousand, sixty-eight".