13618368847 has 2 divisors, whose sum is σ = 13618368848. Its totient is φ = 13618368846.

The previous prime is 13618368833. The next prime is 13618368893. The reversal of 13618368847 is 74886381631.

It is a weak prime.

It is an emirp because it is prime and its reverse (74886381631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13618368847 - 2¹¹ = 13618366799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13618368947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6809184423 + 6809184424.

It is an arithmetic number, because the mean of its divisors is an integer number (6809184424).

Almost surely, 2^13618368847 is an apocalyptic number.

13618368847 is a deficient number, since it is larger than the sum of its proper divisors (1).

13618368847 is an equidigital number, since it uses as much as digits as its factorization.

13618368847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 55.

The spelling of 13618368847 in words is "thirteen billion, six hundred eighteen million, three hundred sixty-eight thousand, eight hundred forty-seven".