Are you at least 62 years of age and is your spouse currently receiving retirement or disablilty benefits?
yes
even if you have never worked under social security you may be able to get your spouses retirement benefits because you are at least 62 years old. You can also qualify for medicare at age 65
What if we are divorced?
you may still be able to get benefits on your ex-spouse's recod
What are the requirements for Divorced spouses benefits?
For information on the requirements for divorced spouses benefits  read " If You Are Divorceds
How much will I receive if they only files for one benefit?
If your spouses birthday is Jan.2, 1954 or later the option to take only one benefit at full retirement age no longer exists. read they will be effectively filing for all retirement or spousal benefits .
Will this decrease my spouses retirement benefit?
Benefits paid to you as a spouse will not decrease your spouse s retirement benefit.  In fact ,the value of the benefits you may receive , added to their benefits , may help your spouse decide if taking benefits sooner may be more advantageous .
How do I apply?