342669556706569 has 2 divisors, whose sum is σ = 342669556706570. Its totient is φ = 342669556706568.

The previous prime is 342669556706557. The next prime is 342669556706623. The reversal of 342669556706569 is 965607655966243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200005356405625 + 142664200300944 = 14142325^2 + 11944212^2 .

It is an emirp because it is prime and its reverse (965607655966243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342669556706569 - 2¹³ = 342669556698377 is a prime.

It is a super-2 number, since 2×342669556706569² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (342669556706069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171334778353284 + 171334778353285.

It is an arithmetic number, because the mean of its divisors is an integer number (171334778353285).

Almost surely, 2^{342669556706569} is an apocalyptic number.

It is an amenable number.

342669556706569 is a deficient number, since it is larger than the sum of its proper divisors (1).

342669556706569 is an equidigital number, since it uses as much as digits as its factorization.

342669556706569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13226976000, while the sum is 79.

The spelling of 342669556706569 in words is "three hundred forty-two trillion, six hundred sixty-nine billion, five hundred fifty-six million, seven hundred six thousand, five hundred sixty-nine".