13189278313 has 2 divisors, whose sum is σ = 13189278314. Its totient is φ = 13189278312.

The previous prime is 13189278287. The next prime is 13189278341. The reversal of 13189278313 is 31387298131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7587803664 + 5601474649 = 87108^2 + 74843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13189278313 is a prime.

It is not a weakly prime, because it can be changed into another prime (13189278353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6594639156 + 6594639157.

It is an arithmetic number, because the mean of its divisors is an integer number (6594639157).

Almost surely, 2^13189278313 is an apocalyptic number.

It is an amenable number.

13189278313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13189278313 is an equidigital number, since it uses as much as digits as its factorization.

13189278313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The spelling of 13189278313 in words is "thirteen billion, one hundred eighty-nine million, two hundred seventy-eight thousand, three hundred thirteen".