239344125569 has 2 divisors, whose sum is σ = 239344125570. Its totient is φ = 239344125568.

The previous prime is 239344125557. The next prime is 239344125571. The reversal of 239344125569 is 965521443932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232222791025 + 7121334544 = 481895^2 + 84388^2 .

It is a cyclic number.

It is not a de Polignac number, because 239344125569 - 2²⁴ = 239327348353 is a prime.

It is a super-2 number, since 2×239344125569² (a number of 24 digits) contains 22 as substring.

Together with 239344125571, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239344125569.

It is not a weakly prime, because it can be changed into another prime (239344125539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119672062784 + 119672062785.

It is an arithmetic number, because the mean of its divisors is an integer number (119672062785).

Almost surely, 2^239344125569 is an apocalyptic number.

It is an amenable number.

239344125569 is a deficient number, since it is larger than the sum of its proper divisors (1).

239344125569 is an equidigital number, since it uses as much as digits as its factorization.

239344125569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6998400, while the sum is 53.

The spelling of 239344125569 in words is "two hundred thirty-nine billion, three hundred forty-four million, one hundred twenty-five thousand, five hundred sixty-nine".