13326078481 has 2 divisors, whose sum is σ = 13326078482. Its totient is φ = 13326078480.

The previous prime is 13326078433. The next prime is 13326078499. The reversal of 13326078481 is 18487062331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9651294081 + 3674784400 = 98241^2 + 60620^2 .

It is an emirp because it is prime and its reverse (18487062331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13326078481 - 2¹⁷ = 13325947409 is a prime.

It is a super-2 number, since 2×13326078481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13326072481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6663039240 + 6663039241.

It is an arithmetic number, because the mean of its divisors is an integer number (6663039241).

Almost surely, 2^13326078481 is an apocalyptic number.

It is an amenable number.

13326078481 is a deficient number, since it is larger than the sum of its proper divisors (1).

13326078481 is an equidigital number, since it uses as much as digits as its factorization.

13326078481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 13326078481 in words is "thirteen billion, three hundred twenty-six million, seventy-eight thousand, four hundred eighty-one".