41984911948921 has 2 divisors, whose sum is σ = 41984911948922. Its totient is φ = 41984911948920.

The previous prime is 41984911948901. The next prime is 41984911948949. The reversal of 41984911948921 is 12984911948914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41953666437225 + 31245511696 = 6477165^2 + 176764^2 .

It is a cyclic number.

It is not a de Polignac number, because 41984911948921 - 2¹³ = 41984911940729 is a prime.

It is not a weakly prime, because it can be changed into another prime (41984911948901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20992455974460 + 20992455974461.

It is an arithmetic number, because the mean of its divisors is an integer number (20992455974461).

Almost surely, 2^{41984911948921} is an apocalyptic number.

It is an amenable number.

41984911948921 is a deficient number, since it is larger than the sum of its proper divisors (1).

41984911948921 is an equidigital number, since it uses as much as digits as its factorization.

41984911948921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53747712, while the sum is 70.

The spelling of 41984911948921 in words is "forty-one trillion, nine hundred eighty-four billion, nine hundred eleven million, nine hundred forty-eight thousand, nine hundred twenty-one".