242777347525001 has 2 divisors, whose sum is σ = 242777347525002. Its totient is φ = 242777347525000.

The previous prime is 242777347524973. The next prime is 242777347525003. The reversal of 242777347525001 is 100525743777242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136213431444601 + 106563916080400 = 11671051^2 + 10322980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242777347525001 is a prime.

Together with 242777347525003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242777347525003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121388673762500 + 121388673762501.

It is an arithmetic number, because the mean of its divisors is an integer number (121388673762501).

Almost surely, 2^{242777347525001} is an apocalyptic number.

It is an amenable number.

242777347525001 is a deficient number, since it is larger than the sum of its proper divisors (1).

242777347525001 is an equidigital number, since it uses as much as digits as its factorization.

242777347525001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23049600, while the sum is 56.

The spelling of 242777347525001 in words is "two hundred forty-two trillion, seven hundred seventy-seven billion, three hundred forty-seven million, five hundred twenty-five thousand, one".