13405504135204 has 12 divisors (see below), whose sum is σ = 23780997062284. Its totient is φ = 6610933545984.

The previous prime is 13405504135193. The next prime is 13405504135279. The reversal of 13405504135204 is 40253140550431.

It can be written as a sum of positive squares in 2 ways, for example, as 6983081072704 + 6422423062500 = 2642552^2 + 2534250^2 .

It is a super-2 number, since 2×13405504135204² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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, 22954630077 + ... + 22954630660.

Almost surely, 2^{13405504135204} is an apocalyptic number.

It is an amenable number.

13405504135204 is a deficient number, since it is larger than the sum of its proper divisors (10375492927080).

13405504135204 is a wasteful number, since it uses less digits than its factorization.

13405504135204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45909260814 (or 45909260812 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 13405504135204 its reverse (40253140550431), we get a palindrome (53658644685635).

The spelling of 13405504135204 in words is "thirteen trillion, four hundred five billion, five hundred four million, one hundred thirty-five thousand, two hundred four".