343912590691 has 4 divisors (see below), whose sum is σ = 344250091800. Its totient is φ = 343575089584.

The previous prime is 343912590649. The next prime is 343912590733. The reversal of 343912590691 is 196095219343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196095219343 = 103 ⋅1903837081.

It is an interprime number because it is at equal distance from previous prime (343912590649) and next prime (343912590733).

It is a cyclic number.

It is not a de Polignac number, because 343912590691 - 2²¹ = 343910493539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343912590611) 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, 168749026 + ... + 168751063.

It is an arithmetic number, because the mean of its divisors is an integer number (86062522950).

Almost surely, 2^343912590691 is an apocalyptic number.

343912590691 is a deficient number, since it is larger than the sum of its proper divisors (337501109).

343912590691 is a wasteful number, since it uses less digits than its factorization.

343912590691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337501108.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 343912590691 in words is "three hundred forty-three billion, nine hundred twelve million, five hundred ninety thousand, six hundred ninety-one".