with zbrush? or with sclupture options in the programs
This is more than one software that has been used to create this image.... I would say post work has been done with Photoshop.
You can deform your text over Spherical, Melt, Wind, ... see attached C4D File and Screenshot
Answered with a tutorial: https://grabcad.com/tutorials/how-to-create-a-text-like-the-image-i-attach
Attachmentstest_deform_text.c4d, 82.2 KB