13544213489 has 2 divisors, whose sum is σ = 13544213490. Its totient is φ = 13544213488.

The previous prime is 13544213471. The next prime is 13544213521. The reversal of 13544213489 is 98431244531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9096390625 + 4447822864 = 95375^2 + 66692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13544213489 is a prime.

It is not a weakly prime, because it can be changed into another prime (13544113489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6772106744 + 6772106745.

It is an arithmetic number, because the mean of its divisors is an integer number (6772106745).

Almost surely, 2^13544213489 is an apocalyptic number.

It is an amenable number.

13544213489 is a deficient number, since it is larger than the sum of its proper divisors (1).

13544213489 is an equidigital number, since it uses as much as digits as its factorization.

13544213489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 44.

The spelling of 13544213489 in words is "thirteen billion, five hundred forty-four million, two hundred thirteen thousand, four hundred eighty-nine".