14071467721 has 4 divisors (see below), whose sum is σ = 14078042244. Its totient is φ = 14064893200.

The previous prime is 14071467679. The next prime is 14071467737. The reversal of 14071467721 is 12776417041.

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 11650827721 + 2420640000 = 107939^2 + 49200^2 .

It is a cyclic number.

It is not a de Polignac number, because 14071467721 - 2⁷ = 14071467593 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14071461721) 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, 3284050 + ... + 3288331.

It is an arithmetic number, because the mean of its divisors is an integer number (3519510561).

Almost surely, 2^14071467721 is an apocalyptic number.

It is an amenable number.

14071467721 is a deficient number, since it is larger than the sum of its proper divisors (6574523).

14071467721 is an equidigital number, since it uses as much as digits as its factorization.

14071467721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6574522.

The product of its (nonzero) digits is 65856, while the sum is 40.

The spelling of 14071467721 in words is "fourteen billion, seventy-one million, four hundred sixty-seven thousand, seven hundred twenty-one".