242767251213397 has 2 divisors, whose sum is σ = 242767251213398. Its totient is φ = 242767251213396.

The previous prime is 242767251213247. The next prime is 242767251213427. The reversal of 242767251213397 is 793312152767242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175828819922116 + 66938431291281 = 13260046^2 + 8181591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242767251213397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242767251213497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121383625606698 + 121383625606699.

It is an arithmetic number, because the mean of its divisors is an integer number (121383625606699).

Almost surely, 2^{242767251213397} is an apocalyptic number.

It is an amenable number.

242767251213397 is a deficient number, since it is larger than the sum of its proper divisors (1).

242767251213397 is an equidigital number, since it uses as much as digits as its factorization.

242767251213397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53343360, while the sum is 61.

The spelling of 242767251213397 in words is "two hundred forty-two trillion, seven hundred sixty-seven billion, two hundred fifty-one million, two hundred thirteen thousand, three hundred ninety-seven".