12654943434 has 96 divisors (see below), whose sum is σ = 31771643904. Its totient is φ = 3565602720.

The previous prime is 12654943421. The next prime is 12654943439. The reversal of 12654943434 is 43434945621.

12654943434 is a `hidden beast` number, since 1 + 26 + 549 + 43 + 43 + 4 = 666.

12654943434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12654943434.

It is not an unprimeable number, because it can be changed into a prime (12654943439) 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 in 47 ways as a sum of consecutive naturals, for example, 10279599 + ... + 10280829.

It is an arithmetic number, because the mean of its divisors is an integer number (330954624).

Almost surely, 2^12654943434 is an apocalyptic number.

12654943434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12654943434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15885821952).

12654943434 is an abundant number, since it is smaller than the sum of its proper divisors (19116700470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12654943434 is a wasteful number, since it uses less digits than its factorization.

12654943434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312 (or 2309 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 12654943434 in words is "twelve billion, six hundred fifty-four million, nine hundred forty-three thousand, four hundred thirty-four".