12954309489 has 27 divisors (see below), whose sum is σ = 20573459179. Its totient is φ = 7848820320.

The previous prime is 12954309439. The next prime is 12954309503. The reversal of 12954309489 is 98490345921.

The square root of 12954309489 is 113817.

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

12954309489 is a `hidden beast` number, since 1 + 2 + 9 + 543 + 0 + 94 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 67519089 + 12886790400 = 8217^2 + 113520^2 .

It is not a de Polignac number, because 12954309489 - 2⁹ = 12954308977 is a prime.

It is a super-2 number, since 2×12954309489² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12954309439) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 3754237 + ... + 3757685.

Almost surely, 2^12954309489 is an apocalyptic number.

12954309489 is the 113817-th square number.

12954309489 is the 56909-th centered octagonal number.

It is an amenable number.

12954309489 is a deficient number, since it is larger than the sum of its proper divisors (7619149690).

12954309489 is an frugal number, since it uses more digits than its factorization.

12954309489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926 (or 3463 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 12954309489 in words is "twelve billion, nine hundred fifty-four million, three hundred nine thousand, four hundred eighty-nine".