13449181215489 has 32 divisors (see below), whose sum is σ = 18245075520000. Its totient is φ = 8811222626304.

The previous prime is 13449181215479. The next prime is 13449181215523. The reversal of 13449181215489 is 98451218194431.

It is not a de Polignac number, because 13449181215489 - 2⁷ = 13449181215361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13449181215419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23995557 + ... + 24549645.

It is an arithmetic number, because the mean of its divisors is an integer number (570158610000).

Almost surely, 2^{13449181215489} is an apocalyptic number.

It is an amenable number.

13449181215489 is a deficient number, since it is larger than the sum of its proper divisors (4795894304511).

13449181215489 is a wasteful number, since it uses less digits than its factorization.

13449181215489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554777.

The product of its digits is 9953280, while the sum is 60.

The spelling of 13449181215489 in words is "thirteen trillion, four hundred forty-nine billion, one hundred eighty-one million, two hundred fifteen thousand, four hundred eighty-nine".