16971911882 has 8 divisors (see below), whose sum is σ = 25477439652. Its totient is φ = 8479432000.

The previous prime is 16971911881. The next prime is 16971911897. The reversal of 16971911882 is 28811917961.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15853076281 + 1118835601 = 125909^2 + 33449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16971911881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3258719 + ... + 3263922.

Almost surely, 2^16971911882 is an apocalyptic number.

16971911882 is a deficient number, since it is larger than the sum of its proper divisors (8505527770).

16971911882 is a wasteful number, since it uses less digits than its factorization.

16971911882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523944.

The product of its digits is 435456, while the sum is 53.

The spelling of 16971911882 in words is "sixteen billion, nine hundred seventy-one million, nine hundred eleven thousand, eight hundred eighty-two".