13836240823 has 4 divisors (see below), whose sum is σ = 14650137360. Its totient is φ = 13022344288.

The previous prime is 13836240809. The next prime is 13836240827. The reversal of 13836240823 is 32804263831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13836240823 - 2⁹ = 13836240311 is a prime.

It is a super-2 number, since 2×13836240823² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13836240827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406948243 + ... + 406948276.

It is an arithmetic number, because the mean of its divisors is an integer number (3662534340).

Almost surely, 2^13836240823 is an apocalyptic number.

13836240823 is a deficient number, since it is larger than the sum of its proper divisors (813896537).

13836240823 is an equidigital number, since it uses as much as digits as its factorization.

13836240823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813896536.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 13836240823 in words is "thirteen billion, eight hundred thirty-six million, two hundred forty thousand, eight hundred twenty-three".