Numerological traditions
Nine is the ceiling of the digital root: reduce any number far enough and it lands in one to nine, which is why every life-path and name calculation in the world funnels into this narrow band.
Smorfia napoletana'A figliatathe offspring
Cultural interest — does not change your odds.
What the machines actually did with 9, across every lottery this site holds a long record for.
Across 5 lotteries that hold a 9, its average deviation from expectation is −0.14σ. Statistically ordinary, everywhere.
The one thing a belief about a number can measurably do is change how many people play it — and a jackpot shared more ways is worth less to each winner. That is the only real consequence, and it is arithmetic rather than folklore.