13274214721 has 4 divisors (see below), whose sum is σ = 13275030832. Its totient is φ = 13273398612.

The previous prime is 13274214719. The next prime is 13274214727. The reversal of 13274214721 is 12741247231.

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: 12741247231 = 77237 ⋅164963.

It is a cyclic number.

It is not a de Polignac number, because 13274214721 - 2¹ = 13274214719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13274214727) 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, 383151 + ... + 416356.

It is an arithmetic number, because the mean of its divisors is an integer number (3318757708).

Almost surely, 2^13274214721 is an apocalyptic number.

It is an amenable number.

13274214721 is a deficient number, since it is larger than the sum of its proper divisors (816111).

13274214721 is an equidigital number, since it uses as much as digits as its factorization.

13274214721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816110.

The product of its digits is 18816, while the sum is 34.

The spelling of 13274214721 in words is "thirteen billion, two hundred seventy-four million, two hundred fourteen thousand, seven hundred twenty-one".