13838688642 has 16 divisors (see below), whose sum is σ = 27678532032. Its totient is φ = 4612703760.

The previous prime is 13838688613. The next prime is 13838688679. The reversal of 13838688642 is 24688683831.

It is a happy number.

It is a super-3 number, since 3×13838688642³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245667 + ... + 296697.

It is an arithmetic number, because the mean of its divisors is an integer number (1729908252).

Almost surely, 2^13838688642 is an apocalyptic number.

13838688642 is an abundant number, since it is smaller than the sum of its proper divisors (13839843390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13838688642 is a wasteful number, since it uses less digits than its factorization.

13838688642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96233.

The product of its digits is 10616832, while the sum is 57.

The spelling of 13838688642 in words is "thirteen billion, eight hundred thirty-eight million, six hundred eighty-eight thousand, six hundred forty-two".