3805954947853 has 2 divisors, whose sum is σ = 3805954947854. Its totient is φ = 3805954947852.

The previous prime is 3805954947793. The next prime is 3805954947919. The reversal of 3805954947853 is 3587494595083.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3805706475684 + 248472169 = 1950822^2 + 15763^2 .

It is a cyclic number.

It is not a de Polignac number, because 3805954947853 - 2⁹ = 3805954947341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3805954944853) 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, 1902977473926 + 1902977473927.

It is an arithmetic number, because the mean of its divisors is an integer number (1902977473927).

Almost surely, 2^{3805954947853} is an apocalyptic number.

It is an amenable number.

3805954947853 is a deficient number, since it is larger than the sum of its proper divisors (1).

3805954947853 is an equidigital number, since it uses as much as digits as its factorization.

3805954947853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184000, while the sum is 70.

The spelling of 3805954947853 in words is "three trillion, eight hundred five billion, nine hundred fifty-four million, nine hundred forty-seven thousand, eight hundred fifty-three".