343957896613 has 4 divisors (see below), whose sum is σ = 343983262720. Its totient is φ = 343932530508.

The previous prime is 343957896587. The next prime is 343957896619. The reversal of 343957896613 is 316698759343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 316698759343 = 46271 ⋅6844433.

It is a cyclic number.

It is not a de Polignac number, because 343957896613 - 2³³ = 335367962021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343957896619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12662703 + ... + 12689836.

It is an arithmetic number, because the mean of its divisors is an integer number (85995815680).

Almost surely, 2^343957896613 is an apocalyptic number.

It is an amenable number.

343957896613 is a deficient number, since it is larger than the sum of its proper divisors (25366107).

343957896613 is a wasteful number, since it uses less digits than its factorization.

343957896613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25366106.

The product of its digits is 88179840, while the sum is 64.

The spelling of 343957896613 in words is "three hundred forty-three billion, nine hundred fifty-seven million, eight hundred ninety-six thousand, six hundred thirteen".