12272716409 has 4 divisors (see below), whose sum is σ = 12273176820. Its totient is φ = 12272256000.

The previous prime is 12272716397. The next prime is 12272716429. The reversal of 12272716409 is 90461727221.

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 2809318009 + 9463398400 = 53003^2 + 97280^2 .

It is a cyclic number.

It is not a de Polignac number, because 12272716409 - 2⁸ = 12272716153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12272716429) 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, 187592 + ... + 244409.

It is an arithmetic number, because the mean of its divisors is an integer number (3068294205).

Almost surely, 2^12272716409 is an apocalyptic number.

It is an amenable number.

12272716409 is a deficient number, since it is larger than the sum of its proper divisors (460411).

12272716409 is an equidigital number, since it uses as much as digits as its factorization.

12272716409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460410.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 12272716409 in words is "twelve billion, two hundred seventy-two million, seven hundred sixteen thousand, four hundred nine".