13265876909 has 4 divisors (see below), whose sum is σ = 13266110304. Its totient is φ = 13265643516.

The previous prime is 13265876891. The next prime is 13265876929. The reversal of 13265876909 is 90967856231.

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: 90967856231 = 7 ⋅12995408033.

It is a cyclic number.

It is not a de Polignac number, because 13265876909 - 2¹² = 13265872813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13265876929) 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, 30194 + ... + 165660.

It is an arithmetic number, because the mean of its divisors is an integer number (3316527576).

Almost surely, 2^13265876909 is an apocalyptic number.

It is an amenable number.

13265876909 is a deficient number, since it is larger than the sum of its proper divisors (233395).

13265876909 is an equidigital number, since it uses as much as digits as its factorization.

13265876909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233394.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 13265876909 in words is "thirteen billion, two hundred sixty-five million, eight hundred seventy-six thousand, nine hundred nine".