346633909478669 has 2 divisors, whose sum is σ = 346633909478670. Its totient is φ = 346633909478668.

The previous prime is 346633909478579. The next prime is 346633909478683. The reversal of 346633909478669 is 966874909336643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269151487670569 + 77482421808100 = 16405837^2 + 8802410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346633909478669 is a prime.

It is a super-2 number, since 2×346633909478669² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346633909978669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173316954739334 + 173316954739335.

It is an arithmetic number, because the mean of its divisors is an integer number (173316954739335).

Almost surely, 2^{346633909478669} is an apocalyptic number.

It is an amenable number.

346633909478669 is a deficient number, since it is larger than the sum of its proper divisors (1).

346633909478669 is an equidigital number, since it uses as much as digits as its factorization.

346633909478669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22856214528, while the sum is 83.

The spelling of 346633909478669 in words is "three hundred forty-six trillion, six hundred thirty-three billion, nine hundred nine million, four hundred seventy-eight thousand, six hundred sixty-nine".