242808968291 has 4 divisors (see below), whose sum is σ = 245213017584. Its totient is φ = 240404919000.

The previous prime is 242808968273. The next prime is 242808968293. The reversal of 242808968291 is 192869808242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192869808242 = 2 ⋅96434904121.

It is a cyclic number.

It is not a de Polignac number, because 242808968291 - 2¹⁴ = 242808951907 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 242808968291.

It is not an unprimeable number, because it can be changed into a prime (242808968293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202024495 + ... + 1202024696.

It is an arithmetic number, because the mean of its divisors is an integer number (61303254396).

Almost surely, 2^242808968291 is an apocalyptic number.

242808968291 is a deficient number, since it is larger than the sum of its proper divisors (2404049293).

242808968291 is a wasteful number, since it uses less digits than its factorization.

242808968291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404049292.

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 242808968291 in words is "two hundred forty-two billion, eight hundred eight million, nine hundred sixty-eight thousand, two hundred ninety-one".