39841000109 has 2 divisors, whose sum is σ = 39841000110. Its totient is φ = 39841000108.

The previous prime is 39840999977. The next prime is 39841000123. The reversal of 39841000109 is 90100014893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31400903209 + 8440096900 = 177203^2 + 91870^2 .

It is a cyclic number.

It is not a de Polignac number, because 39841000109 - 2²⁰ = 39839951533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39841000159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19920500054 + 19920500055.

It is an arithmetic number, because the mean of its divisors is an integer number (19920500055).

Almost surely, 2^39841000109 is an apocalyptic number.

It is an amenable number.

39841000109 is a deficient number, since it is larger than the sum of its proper divisors (1).

39841000109 is an equidigital number, since it uses as much as digits as its factorization.

39841000109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

It can be divided in two parts, 39 and 841000109, that added together give a palindrome (841000148).

The spelling of 39841000109 in words is "thirty-nine billion, eight hundred forty-one million, one hundred nine", and thus it is an aban number.