12451645226 has 16 divisors (see below), whose sum is σ = 18981648000. Its totient is φ = 6125057568.

The previous prime is 12451645181. The next prime is 12451645229. The reversal of 12451645226 is 62254615421.

It is a self number, because there is not a number n which added to its sum of digits gives 12451645226.

It is not an unprimeable number, because it can be changed into a prime (12451645229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117251 + ... + 196598.

It is an arithmetic number, because the mean of its divisors is an integer number (1186353000).

Almost surely, 2^12451645226 is an apocalyptic number.

12451645226 is a deficient number, since it is larger than the sum of its proper divisors (6530002774).

12451645226 is a wasteful number, since it uses less digits than its factorization.

12451645226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314173.

The product of its digits is 115200, while the sum is 38.

The spelling of 12451645226 in words is "twelve billion, four hundred fifty-one million, six hundred forty-five thousand, two hundred twenty-six".