13836240813 has 4 divisors (see below), whose sum is σ = 18448321088. Its totient is φ = 9224160540.

The previous prime is 13836240809. The next prime is 13836240827. The reversal of 13836240813 is 31804263831.

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 not a de Polignac number, because 13836240813 - 2² = 13836240809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13836240833) 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, 2306040133 + ... + 2306040138.

It is an arithmetic number, because the mean of its divisors is an integer number (4612080272).

Almost surely, 2^13836240813 is an apocalyptic number.

It is an amenable number.

13836240813 is a deficient number, since it is larger than the sum of its proper divisors (4612080275).

13836240813 is an equidigital number, since it uses as much as digits as its factorization.

13836240813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612080274.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 13836240813 in words is "thirteen billion, eight hundred thirty-six million, two hundred forty thousand, eight hundred thirteen".