243398226642 has 16 divisors (see below), whose sum is σ = 503582538240. Its totient is φ = 78335061392.

The previous prime is 243398226641. The next prime is 243398226661. The reversal of 243398226642 is 246622893342.

243398226642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243398226641) 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 7 ways as a sum of consecutive naturals, for example, 699420018 + ... + 699420365.

It is an arithmetic number, because the mean of its divisors is an integer number (31473908640).

Almost surely, 2^243398226642 is an apocalyptic number.

243398226642 is an abundant number, since it is smaller than the sum of its proper divisors (260184311598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243398226642 is a wasteful number, since it uses less digits than its factorization.

243398226642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398840417.

The product of its digits is 5971968, while the sum is 51.

The spelling of 243398226642 in words is "two hundred forty-three billion, three hundred ninety-eight million, two hundred twenty-six thousand, six hundred forty-two".