243253704742 has 8 divisors (see below), whose sum is σ = 365019779232. Its totient is φ = 121580445000.

The previous prime is 243253704709. The next prime is 243253704893. The reversal of 243253704742 is 247407352342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×243253704742² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23197134 + ... + 23207617.

It is an arithmetic number, because the mean of its divisors is an integer number (45627472404).

Almost surely, 2^243253704742 is an apocalyptic number.

243253704742 is a deficient number, since it is larger than the sum of its proper divisors (121766074490).

243253704742 is a wasteful number, since it uses less digits than its factorization.

243253704742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46407374.

The product of its (nonzero) digits is 1128960, while the sum is 43.

The spelling of 243253704742 in words is "two hundred forty-three billion, two hundred fifty-three million, seven hundred four thousand, seven hundred forty-two".