13774493321 has 4 divisors (see below), whose sum is σ = 14584757652. Its totient is φ = 12964228992.

The previous prime is 13774493267. The next prime is 13774493413. The reversal of 13774493321 is 12339447731.

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 8214703225 + 5559790096 = 90635^2 + 74564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13774493321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13774490321) 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, 405132140 + ... + 405132173.

It is an arithmetic number, because the mean of its divisors is an integer number (3646189413).

Almost surely, 2^13774493321 is an apocalyptic number.

It is an amenable number.

13774493321 is a deficient number, since it is larger than the sum of its proper divisors (810264331).

13774493321 is an equidigital number, since it uses as much as digits as its factorization.

13774493321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810264330.

The product of its digits is 381024, while the sum is 44.

The spelling of 13774493321 in words is "thirteen billion, seven hundred seventy-four million, four hundred ninety-three thousand, three hundred twenty-one".