13555213849 has 2 divisors, whose sum is σ = 13555213850. Its totient is φ = 13555213848.

The previous prime is 13555213817. The next prime is 13555213877. The reversal of 13555213849 is 94831255531.

13555213849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11949769225 + 1605444624 = 109315^2 + 40068^2 .

It is a cyclic number.

It is not a de Polignac number, because 13555213849 - 2⁵ = 13555213817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13555213799 and 13555213808.

It is not a weakly prime, because it can be changed into another prime (13555213249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6777606924 + 6777606925.

It is an arithmetic number, because the mean of its divisors is an integer number (6777606925).

Almost surely, 2^13555213849 is an apocalyptic number.

It is an amenable number.

13555213849 is a deficient number, since it is larger than the sum of its proper divisors (1).

13555213849 is an equidigital number, since it uses as much as digits as its factorization.

13555213849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 46.

The spelling of 13555213849 in words is "thirteen billion, five hundred fifty-five million, two hundred thirteen thousand, eight hundred forty-nine".