13838322381 has 32 divisors (see below), whose sum is σ = 20465061120. Its totient is φ = 8262342144.

The previous prime is 13838322367. The next prime is 13838322409. The reversal of 13838322381 is 18322383831.

It is not a de Polignac number, because 13838322381 - 2¹⁴ = 13838305997 is a prime.

It is a super-2 number, since 2×13838322381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13838322331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504681 + ... + 531393.

It is an arithmetic number, because the mean of its divisors is an integer number (639533160).

Almost surely, 2^13838322381 is an apocalyptic number.

It is an amenable number.

13838322381 is a deficient number, since it is larger than the sum of its proper divisors (6626738739).

13838322381 is a wasteful number, since it uses less digits than its factorization.

13838322381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27125.

The product of its digits is 165888, while the sum is 42.

The spelling of 13838322381 in words is "thirteen billion, eight hundred thirty-eight million, three hundred twenty-two thousand, three hundred eighty-one".