These heavenly chip and prestige level numbers are just recommended minimums, it is okay to overshoot and then reduce the amount for your next ascension, and if you overshoot by a huge amount you may be able to combine 2 or more ascends into 1. The list directly below lists the names and costs of all heavenly upgrades to purchase this ascend.The last number represents the total cookies baked all time that corresponds to the total prestige level however, due to rounding and limitations of float precision the actual number may be slightly higher.The third number, Total PL, is the total prestige levels (equivalent to unspent plus spent heavenly chips) you should have after this ascend to buy all heavenly upgrades up to this point.
The first number is the ascension count, this would be for the 17th ascension, though it is okay if this number does not correspond with which ascension you are currently on.