13804540505 has 8 divisors (see below), whose sum is σ = 18931941312. Its totient is φ = 9465970608.

The previous prime is 13804540489. The next prime is 13804540507. The reversal of 13804540505 is 50504540831.

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 13804540505 - 2⁴ = 13804540489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 394415443 = 13804540505 / (1 + 3 + 8 + 0 + 4 + 5 + 4 + 0 + 5 + 0 + 5).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13804540507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197207687 + ... + 197207756.

It is an arithmetic number, because the mean of its divisors is an integer number (2366492664).

Almost surely, 2^13804540505 is an apocalyptic number.

It is an amenable number.

13804540505 is a deficient number, since it is larger than the sum of its proper divisors (5127400807).

13804540505 is an equidigital number, since it uses as much as digits as its factorization.

13804540505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394415455.

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 13804540505 in words is "thirteen billion, eight hundred four million, five hundred forty thousand, five hundred five".