13838227831 has 4 divisors (see below), whose sum is σ = 13838478664. Its totient is φ = 13837977000.

The previous prime is 13838227829. The next prime is 13838227849. The reversal of 13838227831 is 13872283831.

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 13838227831 - 2¹ = 13838227829 is a prime.

It is a super-2 number, since 2×13838227831² (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 (13838227811) 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, 2520 + ... + 166381.

It is an arithmetic number, because the mean of its divisors is an integer number (3459619666).

Almost surely, 2^13838227831 is an apocalyptic number.

13838227831 is a deficient number, since it is larger than the sum of its proper divisors (250833).

13838227831 is an equidigital number, since it uses as much as digits as its factorization.

13838227831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250832.

The product of its digits is 387072, while the sum is 46.

The spelling of 13838227831 in words is "thirteen billion, eight hundred thirty-eight million, two hundred twenty-seven thousand, eight hundred thirty-one".