13853811947 has 2 divisors, whose sum is σ = 13853811948. Its totient is φ = 13853811946.

The previous prime is 13853811919. The next prime is 13853811997. The reversal of 13853811947 is 74911835831.

It is a happy number.

13853811947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13853811997) can be obtained adding 13853811947 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13853811947 - 2⁶ = 13853811883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13853811895 and 13853811904.

It is not a weakly prime, because it can be changed into another prime (13853811997) 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, 6926905973 + 6926905974.

It is an arithmetic number, because the mean of its divisors is an integer number (6926905974).

Almost surely, 2^13853811947 is an apocalyptic number.

13853811947 is a deficient number, since it is larger than the sum of its proper divisors (1).

13853811947 is an equidigital number, since it uses as much as digits as its factorization.

13853811947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The spelling of 13853811947 in words is "thirteen billion, eight hundred fifty-three million, eight hundred eleven thousand, nine hundred forty-seven".