16917891129139 has 24 divisors (see below), whose sum is σ = 22887013570400. Its totient is φ = 12168712892160.

The previous prime is 16917891129127. The next prime is 16917891129143. The reversal of 16917891129139 is 93192119871961.

It is not a de Polignac number, because 16917891129139 - 2⁷ = 16917891129011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16917891129149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 768215814 + ... + 768237835.

Almost surely, 2^{16917891129139} is an apocalyptic number.

16917891129139 is a deficient number, since it is larger than the sum of its proper divisors (5969122441261).

16917891129139 is a wasteful number, since it uses less digits than its factorization.

16917891129139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536453691 (or 1536453680 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 67.

The spelling of 16917891129139 in words is "sixteen trillion, nine hundred seventeen billion, eight hundred ninety-one million, one hundred twenty-nine thousand, one hundred thirty-nine".