243653356342 has 48 divisors (see below), whose sum is σ = 404835550560. Its totient is φ = 109896209280.

The previous prime is 243653356333. The next prime is 243653356357.

243653356342 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 243653356292 and 243653356301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30733183 + ... + 30741109.

It is an arithmetic number, because the mean of its divisors is an integer number (8434073970).

Almost surely, 2^243653356342 is an apocalyptic number.

243653356342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243653356342 is a deficient number, since it is larger than the sum of its proper divisors (161182194218).

243653356342 is a wasteful number, since it uses less digits than its factorization.

243653356342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8917 (or 8906 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 46.

It can be divided in two parts, 243653 and 356342, that added together give a palindrome (599995).

The spelling of 243653356342 in words is "two hundred forty-three billion, six hundred fifty-three million, three hundred fifty-six thousand, three hundred forty-two".