41413199981 has 2 divisors, whose sum is σ = 41413199982. Its totient is φ = 41413199980.

The previous prime is 41413199929. The next prime is 41413200029. The reversal of 41413199981 is 18999131414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40898590756 + 514609225 = 202234^2 + 22685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41413199981 is a prime.

It is a super-2 number, since 2×41413199981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41413199921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20706599990 + 20706599991.

It is an arithmetic number, because the mean of its divisors is an integer number (20706599991).

Almost surely, 2^41413199981 is an apocalyptic number.

It is an amenable number.

41413199981 is a deficient number, since it is larger than the sum of its proper divisors (1).

41413199981 is an equidigital number, since it uses as much as digits as its factorization.

41413199981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 50.

The spelling of 41413199981 in words is "forty-one billion, four hundred thirteen million, one hundred ninety-nine thousand, nine hundred eighty-one".