13138169843 has 2 divisors, whose sum is σ = 13138169844. Its totient is φ = 13138169842.

The previous prime is 13138169839. The next prime is 13138169873. The reversal of 13138169843 is 34896183131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13138169843 - 2² = 13138169839 is a prime.

It is a super-2 number, since 2×13138169843² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13138169873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6569084921 + 6569084922.

It is an arithmetic number, because the mean of its divisors is an integer number (6569084922).

Almost surely, 2^13138169843 is an apocalyptic number.

13138169843 is a deficient number, since it is larger than the sum of its proper divisors (1).

13138169843 is an equidigital number, since it uses as much as digits as its factorization.

13138169843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The spelling of 13138169843 in words is "thirteen billion, one hundred thirty-eight million, one hundred sixty-nine thousand, eight hundred forty-three".