16871523127 has 4 divisors (see below), whose sum is σ = 16901174880. Its totient is φ = 16841871376.

The previous prime is 16871523037. The next prime is 16871523161. The reversal of 16871523127 is 72132517861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72132517861 = 197 ⋅366154913.

It is a cyclic number.

It is not a de Polignac number, because 16871523127 - 2⁷ = 16871522999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16871523527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14825023 + ... + 14826160.

It is an arithmetic number, because the mean of its divisors is an integer number (4225293720).

Almost surely, 2^16871523127 is an apocalyptic number.

16871523127 is a deficient number, since it is larger than the sum of its proper divisors (29651753).

16871523127 is an equidigital number, since it uses as much as digits as its factorization.

16871523127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29651752.

The product of its digits is 141120, while the sum is 43.

The spelling of 16871523127 in words is "sixteen billion, eight hundred seventy-one million, five hundred twenty-three thousand, one hundred twenty-seven".