12775133209 has 4 divisors (see below), whose sum is σ = 12780460800. Its totient is φ = 12769805620.

The previous prime is 12775133207. The next prime is 12775133221. The reversal of 12775133209 is 90233157721.

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.

It is a cyclic number.

It is not a de Polignac number, because 12775133209 - 2¹ = 12775133207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12775133207) 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, 2660197 + ... + 2664994.

It is an arithmetic number, because the mean of its divisors is an integer number (3195115200).

Almost surely, 2^12775133209 is an apocalyptic number.

It is an amenable number.

12775133209 is a deficient number, since it is larger than the sum of its proper divisors (5327591).

12775133209 is an equidigital number, since it uses as much as digits as its factorization.

12775133209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327590.

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 12775133209 in words is "twelve billion, seven hundred seventy-five million, one hundred thirty-three thousand, two hundred nine".