Infinitely many primes p with φ⁺(p) < φ⁺(p+1)
Ascertain whether there exist infinitely many primes p such that φ⁺(p) < φ⁺(p+1), where φ⁺(n)=∏_{q\mid n}(φ(q^{v_q(n)})+1).
References
Open question 6: Are there infinitely many prime $p$ such that $\varphi+(p)<\varphi+(p+1)$?
                — Divisibility and Sequence Properties of $σ^+$ and $\varphi^+$
                
                (2508.11660 - Mandal, 6 Aug 2025) in Section 2, Main Results (Open question 6)