Adjusted operating income at Prudential's U.S. businesses jumped 25.9% to $841 million (645 million pounds), buoyed by a 37% rise in adjusted operating income at its workplace retirement and group insurance unit, while it rose 8% to $797 million at its international businesses.

PGIM, Prudential's asset management arm, reported a 18.5% rise in adjusted operating income to $288 million. It managed $1.31 trillion in assets as of the quarter ended Dec. 31, compared with 1.16 trillion in assets, a year earlier.

Net income attributable to the company rose to $1.13 billion, or $2.76 per share, in the fourth quarter, from $842 million, or $1.99 per share, a year earlier.

Excluding items, the insurer earned $2.33 per share, beating analysts' average estimate of $2.02 per share, according to IBES data from Refinitiv.

(Reporting by Abhishek Manikandan in Bengaluru; Editing by Vinay Dwivedi)