13278126559 has 2 divisors, whose sum is σ = 13278126560. Its totient is φ = 13278126558.

The previous prime is 13278126523. The next prime is 13278126569. The reversal of 13278126559 is 95562187231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13278126559 - 2¹³ = 13278118367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13278126509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6639063279 + 6639063280.

It is an arithmetic number, because the mean of its divisors is an integer number (6639063280).

Almost surely, 2^13278126559 is an apocalyptic number.

13278126559 is a deficient number, since it is larger than the sum of its proper divisors (1).

13278126559 is an equidigital number, since it uses as much as digits as its factorization.

13278126559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 49.

The spelling of 13278126559 in words is "thirteen billion, two hundred seventy-eight million, one hundred twenty-six thousand, five hundred fifty-nine".