242842602257 has 2 divisors, whose sum is σ = 242842602258. Its totient is φ = 242842602256.

The previous prime is 242842602239. The next prime is 242842602283. The reversal of 242842602257 is 752206248242.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191921971921 + 50920630336 = 438089^2 + 225656^2 .

It is a cyclic number.

It is not a de Polignac number, because 242842602257 - 2¹⁴ = 242842585873 is a prime.

It is not a weakly prime, because it can be changed into another prime (242842602227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121421301128 + 121421301129.

It is an arithmetic number, because the mean of its divisors is an integer number (121421301129).

Almost surely, 2^242842602257 is an apocalyptic number.

It is an amenable number.

242842602257 is a deficient number, since it is larger than the sum of its proper divisors (1).

242842602257 is an equidigital number, since it uses as much as digits as its factorization.

242842602257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 860160, while the sum is 44.

The spelling of 242842602257 in words is "two hundred forty-two billion, eight hundred forty-two million, six hundred two thousand, two hundred fifty-seven".