349109441691 has 4 divisors (see below), whose sum is σ = 465479255592. Its totient is φ = 232739627792.

The previous prime is 349109441689. The next prime is 349109441699. The reversal of 349109441691 is 196144901943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196144901943 = 3 ⋅65381633981.

It is a cyclic number.

It is not a de Polignac number, because 349109441691 - 2¹ = 349109441689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (349109441699) 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 in 3 ways as a sum of consecutive naturals, for example, 58184906946 + ... + 58184906951.

It is an arithmetic number, because the mean of its divisors is an integer number (116369813898).

Almost surely, 2^349109441691 is an apocalyptic number.

349109441691 is a deficient number, since it is larger than the sum of its proper divisors (116369813901).

349109441691 is a wasteful number, since it uses less digits than its factorization.

349109441691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116369813900.

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 349109441691 in words is "three hundred forty-nine billion, one hundred nine million, four hundred forty-one thousand, six hundred ninety-one".