14949616321 has 4 divisors (see below), whose sum is σ = 15267693312. Its totient is φ = 14631539332.

The previous prime is 14949616307. The next prime is 14949616343. The reversal of 14949616321 is 12361694941.

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: 12361694941 = 9241 ⋅1337701.

It is a cyclic number.

It is not a de Polignac number, because 14949616321 - 2⁵ = 14949616289 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14949616921) 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, 159038425 + ... + 159038518.

It is an arithmetic number, because the mean of its divisors is an integer number (3816923328).

Almost surely, 2^14949616321 is an apocalyptic number.

It is an amenable number.

14949616321 is a deficient number, since it is larger than the sum of its proper divisors (318076991).

14949616321 is an equidigital number, since it uses as much as digits as its factorization.

14949616321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318076990.

The product of its digits is 279936, while the sum is 46.

The spelling of 14949616321 in words is "fourteen billion, nine hundred forty-nine million, six hundred sixteen thousand, three hundred twenty-one".