12453326856 has 80 divisors (see below), whose sum is σ = 36083688300. Its totient is φ = 4007961216.

The previous prime is 12453326833. The next prime is 12453326857. The reversal of 12453326856 is 65862335421.

12453326856 is a `hidden beast` number, since 1 + 2 + 4 + 533 + 2 + 68 + 56 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11996820900 + 456505956 = 109530^2 + 21366^2 .

It is not an unprimeable number, because it can be changed into a prime (12453326857) 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 19 ways as a sum of consecutive naturals, for example, 312555 + ... + 350138.

Almost surely, 2^12453326856 is an apocalyptic number.

It is an amenable number.

12453326856 is an abundant number, since it is smaller than the sum of its proper divisors (23630361444).

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

12453326856 is a wasteful number, since it uses less digits than its factorization.

12453326856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662740 (or 662727 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 12453326856 in words is "twelve billion, four hundred fifty-three million, three hundred twenty-six thousand, eight hundred fifty-six".