14405872805 has 4 divisors (see below), whose sum is σ = 17287047372. Its totient is φ = 11524698240.

The previous prime is 14405872801. The next prime is 14405872849. The reversal of 14405872805 is 50827850441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50827850441 = 1217 ⋅41764873.

It can be written as a sum of positive squares in 2 ways, for example, as 10677915556 + 3727957249 = 103334^2 + 61057^2 .

It is not a de Polignac number, because 14405872805 - 2² = 14405872801 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14405872801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440587276 + ... + 1440587285.

It is an arithmetic number, because the mean of its divisors is an integer number (4321761843).

Almost surely, 2^14405872805 is an apocalyptic number.

It is an amenable number.

14405872805 is a deficient number, since it is larger than the sum of its proper divisors (2881174567).

14405872805 is an equidigital number, since it uses as much as digits as its factorization.

14405872805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881174566.

The product of its (nonzero) digits is 358400, while the sum is 44.

The spelling of 14405872805 in words is "fourteen billion, four hundred five million, eight hundred seventy-two thousand, eight hundred five".