CC2640R2F: Correct way to implement 24 hour delay on CC2640R2

Part Number: CC2640R2F

I need a periodic delay of 24 hours (86400 seconds). The timer module could be used, but because it works in clock ticks, I would need a very large (bigger than 32 bit) number of ticks.

A short periodic timer could call Seconds_get() every second to check for a match, but this sounds like it would be power intensive.

What is the recommended way of achieving such a delay?