242554343551 has 16 divisors (see below), whose sum is σ = 261729506304. Its totient is φ = 223453492704.

The previous prime is 242554343513. The next prime is 242554343579. The reversal of 242554343551 is 155343455242.

It is not a de Polignac number, because 242554343551 - 2⁹ = 242554343039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242554343498 and 242554343507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242554343951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15259530 + ... + 15275416.

It is an arithmetic number, because the mean of its divisors is an integer number (16358094144).

Almost surely, 2^242554343551 is an apocalyptic number.

242554343551 is a deficient number, since it is larger than the sum of its proper divisors (19175162753).

242554343551 is a wasteful number, since it uses less digits than its factorization.

242554343551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18150.

The product of its digits is 1440000, while the sum is 43.

Adding to 242554343551 its reverse (155343455242), we get a palindrome (397897798793).

The spelling of 242554343551 in words is "two hundred forty-two billion, five hundred fifty-four million, three hundred forty-three thousand, five hundred fifty-one".