14439377518 has 4 divisors (see below), whose sum is σ = 21659066280. Its totient is φ = 7219688758.

The previous prime is 14439377509. The next prime is 14439377531. The reversal of 14439377518 is 81577393441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81577393441 = 25261 ⋅3229381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3609844378 + ... + 3609844381.

It is an arithmetic number, because the mean of its divisors is an integer number (5414766570).

Almost surely, 2^14439377518 is an apocalyptic number.

14439377518 is a deficient number, since it is larger than the sum of its proper divisors (7219688762).

14439377518 is an equidigital number, since it uses as much as digits as its factorization.

14439377518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7219688761.

The product of its digits is 2540160, while the sum is 52.

The spelling of 14439377518 in words is "fourteen billion, four hundred thirty-nine million, three hundred seventy-seven thousand, five hundred eighteen".