242710557547 has 4 divisors (see below), whose sum is σ = 246129016176. Its totient is φ = 239292098920.

The previous prime is 242710557521. The next prime is 242710557571. The reversal of 242710557547 is 745755017242.

It is a happy number.

242710557547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242710557547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242710557547.

It is not an unprimeable number, because it can be changed into a prime (242710557247) 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 3 ways as a sum of consecutive naturals, for example, 1709229208 + ... + 1709229349.

It is an arithmetic number, because the mean of its divisors is an integer number (61532254044).

Almost surely, 2^242710557547 is an apocalyptic number.

242710557547 is a deficient number, since it is larger than the sum of its proper divisors (3418458629).

242710557547 is an equidigital number, since it uses as much as digits as its factorization.

242710557547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418458628.

The product of its (nonzero) digits is 2744000, while the sum is 49.

The spelling of 242710557547 in words is "two hundred forty-two billion, seven hundred ten million, five hundred fifty-seven thousand, five hundred forty-seven".