16931569912 has 8 divisors (see below), whose sum is σ = 31746693600. Its totient is φ = 8465784952.

The previous prime is 16931569903. The next prime is 16931569913. The reversal of 16931569912 is 21996513961.

It is a happy number.

16931569912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 16931569912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16931569913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058223112 + ... + 1058223127.

It is an arithmetic number, because the mean of its divisors is an integer number (3968336700).

Almost surely, 2^16931569912 is an apocalyptic number.

It is an amenable number.

16931569912 is a deficient number, since it is larger than the sum of its proper divisors (14815123688).

16931569912 is a wasteful number, since it uses less digits than its factorization.

16931569912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116446245 (or 2116446241 counting only the distinct ones).

The product of its digits is 787320, while the sum is 52.

The spelling of 16931569912 in words is "sixteen billion, nine hundred thirty-one million, five hundred sixty-nine thousand, nine hundred twelve".