349343839423 has 2 divisors, whose sum is σ = 349343839424. Its totient is φ = 349343839422.

The previous prime is 349343839417. The next prime is 349343839433. The reversal of 349343839423 is 324938343943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349343839423 - 2²¹ = 349341742271 is a prime.

It is a super-2 number, since 2×349343839423² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349343839433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174671919711 + 174671919712.

It is an arithmetic number, because the mean of its divisors is an integer number (174671919712).

Almost surely, 2^349343839423 is an apocalyptic number.

349343839423 is a deficient number, since it is larger than the sum of its proper divisors (1).

349343839423 is an equidigital number, since it uses as much as digits as its factorization.

349343839423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 55.

The spelling of 349343839423 in words is "three hundred forty-nine billion, three hundred forty-three million, eight hundred thirty-nine thousand, four hundred twenty-three".