219189964041 has 12 divisors (see below), whose sum is σ = 316614825540. Its totient is φ = 146123365920.

The previous prime is 219189964027. The next prime is 219189964057. The reversal of 219189964041 is 140469981912.

219189964041 is a `hidden beast` number, since 219 + 18 + 9 + 9 + 6 + 404 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54520382016 + 164669582025 = 233496^2 + 405795^2 .

It is not a de Polignac number, because 219189964041 - 2⁹ = 219189963529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (219189964001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192331 + ... + 689471.

It is an arithmetic number, because the mean of its divisors is an integer number (26384568795).

Almost surely, 2^219189964041 is an apocalyptic number.

It is an amenable number.

219189964041 is a deficient number, since it is larger than the sum of its proper divisors (97424861499).

219189964041 is a wasteful number, since it uses less digits than its factorization.

219189964041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546136 (or 546133 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 219189964041 in words is "two hundred nineteen billion, one hundred eighty-nine million, nine hundred sixty-four thousand, forty-one".