12969109924 has 9 divisors (see below), whose sum is σ = 22696340961. Its totient is φ = 6484441080.

The previous prime is 12969109919. The next prime is 12969109949. The reversal of 12969109924 is 42990196921.

It is a happy number.

The square root of 12969109924 is 113882.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6639316324 + 6329793600 = 81482^2 + 79560^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 199294 + ... + 256234.

Almost surely, 2^12969109924 is an apocalyptic number.

12969109924 is the 113882-nd square number.

It is an amenable number.

12969109924 is a deficient number, since it is larger than the sum of its proper divisors (9727231037).

12969109924 is an frugal number, since it uses more digits than its factorization.

12969109924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113886 (or 56943 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 52.

The spelling of 12969109924 in words is "twelve billion, nine hundred sixty-nine million, one hundred nine thousand, nine hundred twenty-four".