The phrase "power of number" can be replaced with various synonyms to add depth and variety to your writing. Some alternatives include "numerical potency," "quantitative efficacy," "arithmetical influence," and "numeric clout." Other options are "statistical might," "mathematical authority," "digital dominance," and "numeric domination." These synonyms convey a sense of strength and importance that numbers hold in various fields, from mathematics and science to business and finance. Using these synonyms in place of "power of number" can make your writing more engaging and impactful while emphasizing the significance of numerical data.