13265351249 has 4 divisors (see below), whose sum is σ = 13346733936. Its totient is φ = 13183968564.

The previous prime is 13265351233. The next prime is 13265351369. The reversal of 13265351249 is 94215356231.

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 13265351249 - 2⁴ = 13265351233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13265341249) 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, 40691099 + ... + 40691424.

It is an arithmetic number, because the mean of its divisors is an integer number (3336683484).

Almost surely, 2^13265351249 is an apocalyptic number.

It is an amenable number.

13265351249 is a deficient number, since it is larger than the sum of its proper divisors (81382687).

13265351249 is an equidigital number, since it uses as much as digits as its factorization.

13265351249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81382686.

The product of its digits is 194400, while the sum is 41.

The spelling of 13265351249 in words is "thirteen billion, two hundred sixty-five million, three hundred fifty-one thousand, two hundred forty-nine".