13888145871171 has 36 divisors (see below), whose sum is σ = 23746306371424. Its totient is φ = 7769592087840.

The previous prime is 13888145871167. The next prime is 13888145871203. The reversal of 13888145871171 is 17117854188831.

It is a happy number.

13888145871171 is a `hidden beast` number, since 1 + 3 + 8 + 8 + 8 + 1 + 458 + 7 + 1 + 171 = 666.

It is not a de Polignac number, because 13888145871171 - 2² = 13888145871167 is a prime.

It is a super-2 number, since 2×13888145871171² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13888145871099 and 13888145871108.

It is not an unprimeable number, because it can be changed into a prime (13888145871371) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 490490395 + ... + 490518708.

Almost surely, 2^{13888145871171} is an apocalyptic number.

13888145871171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13888145871171 is a deficient number, since it is larger than the sum of its proper divisors (9858160500253).

13888145871171 is a wasteful number, since it uses less digits than its factorization.

13888145871171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981009144 (or 981009130 counting only the distinct ones).

The product of its digits is 12042240, while the sum is 63.

The spelling of 13888145871171 in words is "thirteen trillion, eight hundred eighty-eight billion, one hundred forty-five million, eight hundred seventy-one thousand, one hundred seventy-one".