13530986849 has 2 divisors, whose sum is σ = 13530986850. Its totient is φ = 13530986848.

The previous prime is 13530986827. The next prime is 13530986869. The reversal of 13530986849 is 94868903531.

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., 12632186449 + 898800400 = 112393^2 + 29980^2 .

It is a cyclic number.

It is not a de Polignac number, because 13530986849 - 2⁸ = 13530986593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13530986794 and 13530986803.

It is not a weakly prime, because it can be changed into another prime (13530986869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765493424 + 6765493425.

It is an arithmetic number, because the mean of its divisors is an integer number (6765493425).

Almost surely, 2^13530986849 is an apocalyptic number.

It is an amenable number.

13530986849 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530986849 is an equidigital number, since it uses as much as digits as its factorization.

13530986849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 13530986849 in words is "thirteen billion, five hundred thirty million, nine hundred eighty-six thousand, eight hundred forty-nine".