Cockroaches are nocturnal creatures, meaning they are most active at night. Their behavior is driven by survival instincts and environmental factors. Here are four main reasons why roaches come out at night:
https://safepestsol.com/why-do....-roaches-come-out-at

Estimating the total number of cockroaches in the world is challenging, but experts believe their population is in the trillions. With over 4,500 known species, cockroaches are among the most resilient and widespread insects, thriving in various environments from tropical forests to urban buildings.
https://safepestsol.com/how-ma....ny-cockroaches-exist