219087749168 has 20 divisors (see below), whose sum is σ = 424497445008. Its totient is φ = 109540021440.

The previous prime is 219087749147. The next prime is 219087749183. The reversal of 219087749168 is 861947780912.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 219087749168.

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 3 ways as a sum of consecutive naturals, for example, 259805 + ... + 711107.

Almost surely, 2^219087749168 is an apocalyptic number.

It is an amenable number.

219087749168 is a deficient number, since it is larger than the sum of its proper divisors (205409695840).

219087749168 is a wasteful number, since it uses less digits than its factorization.

219087749168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481652 (or 481646 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 62.

The spelling of 219087749168 in words is "two hundred nineteen billion, eighty-seven million, seven hundred forty-nine thousand, one hundred sixty-eight".