343949355319 has 2 divisors, whose sum is σ = 343949355320. Its totient is φ = 343949355318.

The previous prime is 343949355301. The next prime is 343949355329. The reversal of 343949355319 is 913553949343.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343949355319 - 2⁹ = 343949354807 is a prime.

It is a super-2 number, since 2×343949355319² (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 (343949355329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171974677659 + 171974677660.

It is an arithmetic number, because the mean of its divisors is an integer number (171974677660).

Almost surely, 2^343949355319 is an apocalyptic number.

343949355319 is a deficient number, since it is larger than the sum of its proper divisors (1).

343949355319 is an equidigital number, since it uses as much as digits as its factorization.

343949355319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23619600, while the sum is 58.

The spelling of 343949355319 in words is "three hundred forty-three billion, nine hundred forty-nine million, three hundred fifty-five thousand, three hundred nineteen".