13404310505 has 8 divisors (see below), whose sum is σ = 16086390792. Its totient is φ = 10722636288.

The previous prime is 13404310499. The next prime is 13404310537. The reversal of 13404310505 is 50501340431.

It can be written as a sum of positive squares in 4 ways, for example, as 8848600489 + 4555710016 = 94067^2 + 67496^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13404310505 - 2⁴ = 13404310489 is a prime.

It is a super-2 number, since 2×13404310505² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23432 + ... + 165401.

It is an arithmetic number, because the mean of its divisors is an integer number (2010798849).

Almost surely, 2^13404310505 is an apocalyptic number.

It is an amenable number.

13404310505 is a deficient number, since it is larger than the sum of its proper divisors (2682080287).

13404310505 is a wasteful number, since it uses less digits than its factorization.

13404310505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203035.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 13404310505 its reverse (50501340431), we get a palindrome (63905650936).

The spelling of 13404310505 in words is "thirteen billion, four hundred four million, three hundred ten thousand, five hundred five".