16424342289 has 12 divisors (see below), whose sum is σ = 23725851396. Its totient is φ = 10948730112.

The previous prime is 16424342287. The next prime is 16424342317. The reversal of 16424342289 is 98224342461.

16424342289 is a `hidden beast` number, since 1 + 6 + 4 + 24 + 342 + 289 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9450756225 + 6973586064 = 97215^2 + 83508^2 .

It is not a de Polignac number, because 16424342289 - 2¹ = 16424342287 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16424342287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70717 + ... + 194549.

It is an arithmetic number, because the mean of its divisors is an integer number (1977154283).

Almost surely, 2^16424342289 is an apocalyptic number.

It is an amenable number.

16424342289 is a deficient number, since it is larger than the sum of its proper divisors (7301509107).

16424342289 is a wasteful number, since it uses less digits than its factorization.

16424342289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138576 (or 138573 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 16424342289 in words is "sixteen billion, four hundred twenty-four million, three hundred forty-two thousand, two hundred eighty-nine".