13208892449 has 2 divisors, whose sum is σ = 13208892450. Its totient is φ = 13208892448.

The previous prime is 13208892419. The next prime is 13208892523. The reversal of 13208892449 is 94429880231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6851700625 + 6357191824 = 82775^2 + 79732^2 .

It is a cyclic number.

It is not a de Polignac number, because 13208892449 - 2¹² = 13208888353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13208892397 and 13208892406.

It is not a weakly prime, because it can be changed into another prime (13208892419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6604446224 + 6604446225.

It is an arithmetic number, because the mean of its divisors is an integer number (6604446225).

Almost surely, 2^13208892449 is an apocalyptic number.

It is an amenable number.

13208892449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13208892449 is an equidigital number, since it uses as much as digits as its factorization.

13208892449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 13208892449 in words is "thirteen billion, two hundred eight million, eight hundred ninety-two thousand, four hundred forty-nine".