12274516578 has 16 divisors (see below), whose sum is σ = 24557381856. Its totient is φ = 4090114080.

The previous prime is 12274516571. The next prime is 12274516607. The reversal of 12274516578 is 87561547221.

12274516578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12274516571) 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 7 ways as a sum of consecutive naturals, for example, 328668 + ... + 364103.

It is an arithmetic number, because the mean of its divisors is an integer number (1534836366).

Almost surely, 2^12274516578 is an apocalyptic number.

12274516578 is an abundant number, since it is smaller than the sum of its proper divisors (12282865278).

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

12274516578 is a wasteful number, since it uses less digits than its factorization.

12274516578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695729.

The product of its digits is 940800, while the sum is 48.

The spelling of 12274516578 in words is "twelve billion, two hundred seventy-four million, five hundred sixteen thousand, five hundred seventy-eight".