14004249905 has 4 divisors (see below), whose sum is σ = 16805099892. Its totient is φ = 11203399920.

The previous prime is 14004249899. The next prime is 14004249977. The reversal of 14004249905 is 50994240041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50994240041 = 43037 ⋅1184893.

It can be written as a sum of positive squares in 2 ways, for example, as 3236244544 + 10768005361 = 56888^2 + 103769^2 .

It is a de Polignac number, because none of the positive numbers 2^k-14004249905 is a prime.

It is a super-2 number, since 2×14004249905² (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 3 ways as a sum of consecutive naturals, for example, 1400424986 + ... + 1400424995.

It is an arithmetic number, because the mean of its divisors is an integer number (4201274973).

Almost surely, 2^14004249905 is an apocalyptic number.

It is an amenable number.

14004249905 is a deficient number, since it is larger than the sum of its proper divisors (2800849987).

14004249905 is an equidigital number, since it uses as much as digits as its factorization.

14004249905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800849986.

The product of its (nonzero) digits is 51840, while the sum is 38.

Adding to 14004249905 its reverse (50994240041), we get a palindrome (64998489946).

The spelling of 14004249905 in words is "fourteen billion, four million, two hundred forty-nine thousand, nine hundred five".