12744018356 has 24 divisors (see below), whose sum is σ = 22863927240. Its totient is φ = 6211712000.

The previous prime is 12744018347. The next prime is 12744018359. The reversal of 12744018356 is 65381044721.

It can be written as a sum of positive squares in 4 ways, for example, as 1051056400 + 11692961956 = 32420^2 + 108134^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744018359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183500 + ... + 243228.

It is an arithmetic number, because the mean of its divisors is an integer number (952663635).

Almost surely, 2^12744018356 is an apocalyptic number.

It is an amenable number.

12744018356 is a deficient number, since it is larger than the sum of its proper divisors (10119908884).

12744018356 is a wasteful number, since it uses less digits than its factorization.

12744018356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61075 (or 61073 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 12744018356 in words is "twelve billion, seven hundred forty-four million, eighteen thousand, three hundred fifty-six".