13882111938 has 30 divisors (see below), whose sum is σ = 31109574441. Its totient is φ = 4626870768.

The previous prime is 13882111927. The next prime is 13882111961. The reversal of 13882111938 is 83911128831.

It can be written as a sum of positive squares in 2 ways, for example, as 10275268689 + 3606843249 = 101367^2 + 60057^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=83313.

It is a junction number, because it is equal to n+sod(n) for n = 13882111893 and 13882111902.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1495006 + ... + 1504262.

Almost surely, 2^13882111938 is an apocalyptic number.

13882111938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13882111938 is an abundant number, since it is smaller than the sum of its proper divisors (17227462503).

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

13882111938 is an frugal number, since it uses more digits than its factorization.

13882111938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18528 (or 9262 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The spelling of 13882111938 in words is "thirteen billion, eight hundred eighty-two million, one hundred eleven thousand, nine hundred thirty-eight".