985208541841 has 2 divisors, whose sum is σ = 985208541842. Its totient is φ = 985208541840.

The previous prime is 985208541797. The next prime is 985208541851. The reversal of 985208541841 is 148145802589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 856126423441 + 129082118400 = 925271^2 + 359280^2 .

It is a cyclic number.

It is not a de Polignac number, because 985208541841 - 2³³ = 976618607249 is a prime.

It is not a weakly prime, because it can be changed into another prime (985208541851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492604270920 + 492604270921.

It is an arithmetic number, because the mean of its divisors is an integer number (492604270921).

Almost surely, 2^985208541841 is an apocalyptic number.

It is an amenable number.

985208541841 is a deficient number, since it is larger than the sum of its proper divisors (1).

985208541841 is an equidigital number, since it uses as much as digits as its factorization.

985208541841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3686400, while the sum is 55.

The spelling of 985208541841 in words is "nine hundred eighty-five billion, two hundred eight million, five hundred forty-one thousand, eight hundred forty-one".