16471989211 has 4 divisors (see below), whose sum is σ = 16473488400. Its totient is φ = 16470490024.

The previous prime is 16471989179. The next prime is 16471989229. The reversal of 16471989211 is 11298917461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11298917461 = 13 ⋅869147497.

It is a cyclic number.

It is not a de Polignac number, because 16471989211 - 2⁵ = 16471989179 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16471989311) 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 3 ways as a sum of consecutive naturals, for example, 732991 + ... + 755128.

It is an arithmetic number, because the mean of its divisors is an integer number (4118372100).

Almost surely, 2^16471989211 is an apocalyptic number.

16471989211 is a deficient number, since it is larger than the sum of its proper divisors (1499189).

16471989211 is a wasteful number, since it uses less digits than its factorization.

16471989211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499188.

The product of its digits is 217728, while the sum is 49.

The spelling of 16471989211 in words is "sixteen billion, four hundred seventy-one million, nine hundred eighty-nine thousand, two hundred eleven".