13544344045 has 4 divisors (see below), whose sum is σ = 16253212860. Its totient is φ = 10835475232.

The previous prime is 13544344043. The next prime is 13544344067. The reversal of 13544344045 is 54044344531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4451958729 + 9092385316 = 66723^2 + 95354^2 .

It is a cyclic number.

It is not a de Polignac number, because 13544344045 - 2¹ = 13544344043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13544343995 and 13544344013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13544344043) 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 3 ways as a sum of consecutive naturals, for example, 1354434400 + ... + 1354434409.

It is an arithmetic number, because the mean of its divisors is an integer number (4063303215).

Almost surely, 2^13544344045 is an apocalyptic number.

It is an amenable number.

13544344045 is a deficient number, since it is larger than the sum of its proper divisors (2708868815).

13544344045 is an equidigital number, since it uses as much as digits as its factorization.

13544344045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708868814.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 13544344045 its reverse (54044344531), we get a palindrome (67588688576).

The spelling of 13544344045 in words is "thirteen billion, five hundred forty-four million, three hundred forty-four thousand, forty-five".