16871963577 has 32 divisors (see below), whose sum is σ = 27228933120. Its totient is φ = 9077624640.

The previous prime is 16871963569. The next prime is 16871963579. The reversal of 16871963577 is 77536917861.

It is not a de Polignac number, because 16871963577 - 2³ = 16871963569 is a prime.

It is a super-2 number, since 2×16871963577² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16871963577.

It is not an unprimeable number, because it can be changed into a prime (16871963579) 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 31 ways as a sum of consecutive naturals, for example, 64674 + ... + 194747.

It is an arithmetic number, because the mean of its divisors is an integer number (850904160).

Almost surely, 2^16871963577 is an apocalyptic number.

It is an amenable number.

16871963577 is a deficient number, since it is larger than the sum of its proper divisors (10356969543).

16871963577 is a wasteful number, since it uses less digits than its factorization.

16871963577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259613.

The product of its digits is 13335840, while the sum is 60.

The spelling of 16871963577 in words is "sixteen billion, eight hundred seventy-one million, nine hundred sixty-three thousand, five hundred seventy-seven".