242665718767 has 2 divisors, whose sum is σ = 242665718768. Its totient is φ = 242665718766.

The previous prime is 242665718717. The next prime is 242665718773. The reversal of 242665718767 is 767817566242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242665718767 - 2²⁷ = 242531501039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242665718707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121332859383 + 121332859384.

It is an arithmetic number, because the mean of its divisors is an integer number (121332859384).

Almost surely, 2^242665718767 is an apocalyptic number.

242665718767 is a deficient number, since it is larger than the sum of its proper divisors (1).

242665718767 is an equidigital number, since it uses as much as digits as its factorization.

242665718767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47416320, while the sum is 61.

The spelling of 242665718767 in words is "two hundred forty-two billion, six hundred sixty-five million, seven hundred eighteen thousand, seven hundred sixty-seven".