13877936161 has 2 divisors, whose sum is σ = 13877936162. Its totient is φ = 13877936160.

The previous prime is 13877936159. The next prime is 13877936183. The reversal of 13877936161 is 16163977831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7583100561 + 6294835600 = 87081^2 + 79340^2 .

It is an emirp because it is prime and its reverse (16163977831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13877936161 - 2¹ = 13877936159 is a prime.

It is a super-2 number, since 2×13877936161² (a number of 21 digits) contains 22 as substring.

Together with 13877936159, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13877936099 and 13877936108.

It is not a weakly prime, because it can be changed into another prime (13877936101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6938968080 + 6938968081.

It is an arithmetic number, because the mean of its divisors is an integer number (6938968081).

Almost surely, 2^13877936161 is an apocalyptic number.

It is an amenable number.

13877936161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13877936161 is an equidigital number, since it uses as much as digits as its factorization.

13877936161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 52.

The spelling of 13877936161 in words is "thirteen billion, eight hundred seventy-seven million, nine hundred thirty-six thousand, one hundred sixty-one".