13423401510545 has 24 divisors (see below), whose sum is σ = 17486415275256. Its totient is φ = 9887696552448.

The previous prime is 13423401510539. The next prime is 13423401510599. The reversal of 13423401510545 is 54501510432431.

It can be written as a sum of positive squares in 12 ways, for example, as 7724658572929 + 5698742937616 = 2779327^2 + 2387204^2 .

It is not a de Polignac number, because 13423401510545 - 2¹⁰ = 13423401509521 is a prime.

It is a super-2 number, since 2×13423401510545² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13423401510499 and 13423401510508.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 19671692 + ... + 20342621.

It is an arithmetic number, because the mean of its divisors is an integer number (728600636469).

Almost surely, 2^{13423401510545} is an apocalyptic number.

It is an amenable number.

13423401510545 is a deficient number, since it is larger than the sum of its proper divisors (4063013764711).

13423401510545 is a wasteful number, since it uses less digits than its factorization.

13423401510545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40014741 (or 40014728 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 13423401510545 its reverse (54501510432431), we get a palindrome (67924911942976).

The spelling of 13423401510545 in words is "thirteen trillion, four hundred twenty-three billion, four hundred one million, five hundred ten thousand, five hundred forty-five".