39994481341 has 2 divisors, whose sum is σ = 39994481342. Its totient is φ = 39994481340.

The previous prime is 39994481309. The next prime is 39994481393. The reversal of 39994481341 is 14318449993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37547200441 + 2447280900 = 193771^2 + 49470^2 .

It is an emirp because it is prime and its reverse (14318449993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39994481341 - 2⁵ = 39994481309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39994481141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19997240670 + 19997240671.

It is an arithmetic number, because the mean of its divisors is an integer number (19997240671).

Almost surely, 2^39994481341 is an apocalyptic number.

It is an amenable number.

39994481341 is a deficient number, since it is larger than the sum of its proper divisors (1).

39994481341 is an equidigital number, since it uses as much as digits as its factorization.

39994481341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3359232, while the sum is 55.

The spelling of 39994481341 in words is "thirty-nine billion, nine hundred ninety-four million, four hundred eighty-one thousand, three hundred forty-one".