14451423809 has 4 divisors (see below), whose sum is σ = 14452983216. Its totient is φ = 14449864404.

The previous prime is 14451423781. The next prime is 14451423821. The reversal of 14451423809 is 90832415441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90832415441 = 15383 ⋅5904727.

It is a cyclic number.

It is not a de Polignac number, because 14451423809 - 2¹² = 14451419713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14451423409) by changing a digit.

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, 765719 + ... + 784364.

It is an arithmetic number, because the mean of its divisors is an integer number (3613245804).

Almost surely, 2^14451423809 is an apocalyptic number.

It is an amenable number.

14451423809 is a deficient number, since it is larger than the sum of its proper divisors (1559407).

14451423809 is an equidigital number, since it uses as much as digits as its factorization.

14451423809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559406.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 14451423809 in words is "fourteen billion, four hundred fifty-one million, four hundred twenty-three thousand, eight hundred nine".