14323815606721 has 4 divisors (see below), whose sum is σ = 14710945758292. Its totient is φ = 13936685455152.

The previous prime is 14323815606691. The next prime is 14323815606743. The reversal of 14323815606721 is 12760651832341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10346283966096 + 3977531640625 = 3216564^2 + 1994375^2 .

It is a cyclic number.

It is not a de Polignac number, because 14323815606721 - 2¹¹ = 14323815604673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14323815606521) 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, 193565075730 + ... + 193565075803.

It is an arithmetic number, because the mean of its divisors is an integer number (3677736439573).

Almost surely, 2^{14323815606721} is an apocalyptic number.

It is an amenable number.

14323815606721 is a deficient number, since it is larger than the sum of its proper divisors (387130151571).

14323815606721 is an equidigital number, since it uses as much as digits as its factorization.

14323815606721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387130151570.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 14323815606721 in words is "fourteen trillion, three hundred twenty-three billion, eight hundred fifteen million, six hundred six thousand, seven hundred twenty-one".