He also specialized in the publication of critical texts and scientific translations of medieval works.

[2] His research focused on the 5th century philosopher David the Invincible.

He was the founder and chairman of the Cultural Found of Armenia (1986–1989) and an Honored Citizen of Yerevan.

[4] Arevshatyan was awarded the State Prize of the Armenian SSR in 1978.

He was a member of Armenian Academy of Sciences presidium, ex-director of Matenadaran for more than two decades.