With life expectancies on the rise, 58 percent of affluent Americans believe they could live to be 100, according to the latest Merrill Lynch Affluent Insights Survey. Seventy-five percent of those surveyed said they would approach their money management differently if they knew today they were going to live that long.

To financially accommodate a longer life, 39 percent said they would continue to work at least part-time in retirement. Thirty-seven percent said they would work with their financial advisor to reevaluate their savings and investment strategies. Thirty-two percent said they would invest in a lifetime income product, such as an annuity or contribute more to a 401(k), IRA or other retirement savings vehicle. Twenty-nine percent said they would purchase long-term care insurance and 25 percent said they would retire closer to 85 than 65.

Nearly 60 percent of those interviewed also said that in light of longer life expectancies,  they believe the age at which Americans can collect Social Security should be raised.