His estate served as a place for important diplomatic negotiations, however, until the 20s of the 21st century, its location was unknown. Sultanbet Sultan played an important role in strengthening Kazakh statehood in the eastern and northeastern regions of the Kazakh Khanate.
The people remember him as a worthy, decent and wise ruler of the ulus of the Middle Zhuz, the main territory of which was just in Pavlodar region.
He was not only the cousin of Abylai Khan, but was also his companion. The history of the Kazakh people knows many outstanding personalities, including Sultanbet Sultan, a famous statesman of the 18th century.