242344542545 has 16 divisors (see below), whose sum is σ = 332369498880. Its totient is φ = 166173480384.

The previous prime is 242344542529. The next prime is 242344542547. The reversal of 242344542545 is 545245443242.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 242344542545 - 2⁴ = 242344542529 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 242344542496 and 242344542505.

It is not an unprimeable number, because it can be changed into a prime (242344542547) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1110524 + ... + 1310706.

It is an arithmetic number, because the mean of its divisors is an integer number (20773093680).

Almost surely, 2^242344542545 is an apocalyptic number.

It is an amenable number.

242344542545 is a deficient number, since it is larger than the sum of its proper divisors (90024956335).

242344542545 is a wasteful number, since it uses less digits than its factorization.

242344542545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234784.

The product of its digits is 3072000, while the sum is 44.

Adding to 242344542545 its reverse (545245443242), we get a palindrome (787589985787).

The spelling of 242344542545 in words is "two hundred forty-two billion, three hundred forty-four million, five hundred forty-two thousand, five hundred forty-five".