13881165227 has 16 divisors (see below), whose sum is σ = 15029038080. Its totient is φ = 12770798208.

The previous prime is 13881165223. The next prime is 13881165239. The reversal of 13881165227 is 72256118831.

It is not a de Polignac number, because 13881165227 - 2² = 13881165223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13881165223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660008 + ... + 680714.

It is an arithmetic number, because the mean of its divisors is an integer number (939314880).

Almost surely, 2^13881165227 is an apocalyptic number.

13881165227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13881165227 is a deficient number, since it is larger than the sum of its proper divisors (1147872853).

13881165227 is a wasteful number, since it uses less digits than its factorization.

13881165227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21610.

The product of its digits is 161280, while the sum is 44.

The spelling of 13881165227 in words is "thirteen billion, eight hundred eighty-one million, one hundred sixty-five thousand, two hundred twenty-seven".