16871742719 has 16 divisors (see below), whose sum is σ = 18548006400. Its totient is φ = 15251556576.

The previous prime is 16871742661. The next prime is 16871742737. The reversal of 16871742719 is 91724717861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16871742719 is a prime.

It is a super-2 number, since 2×16871742719² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16871742749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159902 + ... + 243540.

It is an arithmetic number, because the mean of its divisors is an integer number (1159250400).

Almost surely, 2^16871742719 is an apocalyptic number.

16871742719 is a deficient number, since it is larger than the sum of its proper divisors (1676263681).

16871742719 is a wasteful number, since it uses less digits than its factorization.

16871742719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83974.

The product of its digits is 1185408, while the sum is 53.

The spelling of 16871742719 in words is "sixteen billion, eight hundred seventy-one million, seven hundred forty-two thousand, seven hundred nineteen".