13280539997 has 2 divisors, whose sum is σ = 13280539998. Its totient is φ = 13280539996.

The previous prime is 13280539933. The next prime is 13280539999. The reversal of 13280539997 is 79993508231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11222012356 + 2058527641 = 105934^2 + 45371^2 .

It is a cyclic number.

It is not a de Polignac number, because 13280539997 - 2⁶ = 13280539933 is a prime.

It is a super-2 number, since 2×13280539997² (a number of 21 digits) contains 22 as substring.

Together with 13280539999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13280539999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6640269998 + 6640269999.

It is an arithmetic number, because the mean of its divisors is an integer number (6640269999).

Almost surely, 2^13280539997 is an apocalyptic number.

It is an amenable number.

13280539997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13280539997 is an equidigital number, since it uses as much as digits as its factorization.

13280539997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 56.

The spelling of 13280539997 in words is "thirteen billion, two hundred eighty million, five hundred thirty-nine thousand, nine hundred ninety-seven".