13478825911 has 2 divisors, whose sum is σ = 13478825912. Its totient is φ = 13478825910.

The previous prime is 13478825909. The next prime is 13478825917. The reversal of 13478825911 is 11952887431.

It is a weak prime.

It is an emirp because it is prime and its reverse (11952887431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13478825911 - 2¹ = 13478825909 is a prime.

Together with 13478825909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13478825917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6739412955 + 6739412956.

It is an arithmetic number, because the mean of its divisors is an integer number (6739412956).

Almost surely, 2^13478825911 is an apocalyptic number.

13478825911 is a deficient number, since it is larger than the sum of its proper divisors (1).

13478825911 is an equidigital number, since it uses as much as digits as its factorization.

13478825911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 49.

The spelling of 13478825911 in words is "thirteen billion, four hundred seventy-eight million, eight hundred twenty-five thousand, nine hundred eleven".