242688247379 has 2 divisors, whose sum is σ = 242688247380. Its totient is φ = 242688247378.

The previous prime is 242688247343. The next prime is 242688247391. The reversal of 242688247379 is 973742886242.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242688247379 is a prime.

It is not a weakly prime, because it can be changed into another prime (242688247079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121344123689 + 121344123690.

It is an arithmetic number, because the mean of its divisors is an integer number (121344123690).

Almost surely, 2^242688247379 is an apocalyptic number.

242688247379 is a deficient number, since it is larger than the sum of its proper divisors (1).

242688247379 is an equidigital number, since it uses as much as digits as its factorization.

242688247379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65028096, while the sum is 62.

The spelling of 242688247379 in words is "two hundred forty-two billion, six hundred eighty-eight million, two hundred forty-seven thousand, three hundred seventy-nine".