16871183992747 has 24 divisors (see below), whose sum is σ = 19941183249120. Its totient is φ = 14229326603520.

The previous prime is 16871183992673. The next prime is 16871183992757. The reversal of 16871183992747 is 74729938117861.

It is not a de Polignac number, because 16871183992747 - 2¹¹ = 16871183990699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16871183992747.

It is not an unprimeable number, because it can be changed into a prime (16871183992757) 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, 2992878 + ... + 6534499.

It is an arithmetic number, because the mean of its divisors is an integer number (830882635380).

Almost surely, 2^{16871183992747} is an apocalyptic number.

16871183992747 is a deficient number, since it is larger than the sum of its proper divisors (3069999256373).

16871183992747 is an equidigital number, since it uses as much as digits as its factorization.

16871183992747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9527971 (or 9527964 counting only the distinct ones).

The product of its digits is 256048128, while the sum is 73.

The spelling of 16871183992747 in words is "sixteen trillion, eight hundred seventy-one billion, one hundred eighty-three million, nine hundred ninety-two thousand, seven hundred forty-seven".