242568217564 has 24 divisors (see below), whose sum is σ = 436026976560. Its totient is φ = 117989980416.

The previous prime is 242568217537. The next prime is 242568217609. The reversal of 242568217564 is 465712865242.

It is a happy number.

242568217564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 1008372 + ... + 1225540.

It is an arithmetic number, because the mean of its divisors is an integer number (18167790690).

Almost surely, 2^242568217564 is an apocalyptic number.

It is an amenable number.

242568217564 is a deficient number, since it is larger than the sum of its proper divisors (193458758996).

242568217564 is a wasteful number, since it uses less digits than its factorization.

242568217564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224757 (or 224755 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 52.

The spelling of 242568217564 in words is "two hundred forty-two billion, five hundred sixty-eight million, two hundred seventeen thousand, five hundred sixty-four".