242767251213247 has 2 divisors, whose sum is σ = 242767251213248. Its totient is φ = 242767251213246.

The previous prime is 242767251213203. The next prime is 242767251213397. The reversal of 242767251213247 is 742312152767242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242767251213247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242767251213947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121383625606623 + 121383625606624.

It is an arithmetic number, because the mean of its divisors is an integer number (121383625606624).

Almost surely, 2^{242767251213247} is an apocalyptic number.

242767251213247 is a deficient number, since it is larger than the sum of its proper divisors (1).

242767251213247 is an equidigital number, since it uses as much as digits as its factorization.

242767251213247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15805440, while the sum is 55.

The spelling of 242767251213247 in words is "two hundred forty-two trillion, seven hundred sixty-seven billion, two hundred fifty-one million, two hundred thirteen thousand, two hundred forty-seven".