12909237841 has 4 divisors (see below), whose sum is σ = 12909506800. Its totient is φ = 12908968884.

The previous prime is 12909237833. The next prime is 12909237851. The reversal of 12909237841 is 14873290921.

It is a happy number.

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: 14873290921 = 52189 ⋅284989.

It is a cyclic number.

It is not a de Polignac number, because 12909237841 - 2³ = 12909237833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12909237791 and 12909237800.

It is not an unprimeable number, because it can be changed into a prime (12909237851) 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, 40671 + ... + 165748.

It is an arithmetic number, because the mean of its divisors is an integer number (3227376700).

Almost surely, 2^12909237841 is an apocalyptic number.

It is an amenable number.

12909237841 is a deficient number, since it is larger than the sum of its proper divisors (268959).

12909237841 is an equidigital number, since it uses as much as digits as its factorization.

12909237841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268958.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 12909237841 in words is "twelve billion, nine hundred nine million, two hundred thirty-seven thousand, eight hundred forty-one".