Layer Estimates:

Layer: Overlapping_block_groups_ap (ID:0)
Count: 1
Extent:

XMin: -13114264.9869
YMin: 4033256.0247
XMax: -13073890.1715
YMax: 4052972.2038
Spatial Reference: 102100 (3857)

Layer: GroupBySummary (ID:1)
Count: 172