13877324138 has 4 divisors (see below), whose sum is σ = 20815986210. Its totient is φ = 6938662068.

The previous prime is 13877324113. The next prime is 13877324143. The reversal of 13877324138 is 83142377831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83142377831 = 9973 ⋅8336747.

It can be written as a sum of positive squares in only one way, i.e., 11002541449 + 2874782689 = 104893^2 + 53617^2 .

It is a super-2 number, since 2×13877324138² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13877324092 and 13877324101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3469331033 + ... + 3469331036.

Almost surely, 2^13877324138 is an apocalyptic number.

13877324138 is a deficient number, since it is larger than the sum of its proper divisors (6938662072).

13877324138 is an equidigital number, since it uses as much as digits as its factorization.

13877324138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938662071.

The product of its digits is 677376, while the sum is 47.

The spelling of 13877324138 in words is "thirteen billion, eight hundred seventy-seven million, three hundred twenty-four thousand, one hundred thirty-eight".