13544535545 has 24 divisors (see below), whose sum is σ = 17277392664. Its totient is φ = 10191374336.

The previous prime is 13544535533. The next prime is 13544535547. The reversal of 13544535545 is 54553544531.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 1352179984 + 12192355561 = 36772^2 + 110419^2 .

It is not a de Polignac number, because 13544535545 - 2¹⁴ = 13544519161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13544535496 and 13544535505.

It is not an unprimeable number, because it can be changed into a prime (13544535547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3455927 + ... + 3459843.

It is an arithmetic number, because the mean of its divisors is an integer number (719891361).

Almost surely, 2^13544535545 is an apocalyptic number.

It is an amenable number.

13544535545 is a deficient number, since it is larger than the sum of its proper divisors (3732857119).

13544535545 is a wasteful number, since it uses less digits than its factorization.

13544535545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6349 (or 6332 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 44.

The spelling of 13544535545 in words is "thirteen billion, five hundred forty-four million, five hundred thirty-five thousand, five hundred forty-five".