This number is claiming to be Gmail technical support: 844 240 4732
Got it on video as well. They're trying to get access to your accounts, they asked me for my phone number so they can reset my password.
https://www.snpedia.com/index.php/((((sdcart))))%271844_240_4732_Gmail_tech_support_number_1_844_240_4732_Gmail_tech_support_number
Also: +1-844-851-9490