12453261391872 has 144 divisors (see below), whose sum is σ = 41105492129520. Its totient is φ = 3558074646528.

The previous prime is 12453261391853. The next prime is 12453261391873. The reversal of 12453261391872 is 27819316235421.

12453261391872 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 3 + 2 + 613 + 9 + 18 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12453261391873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48130453 + ... + 48388500.

It is an arithmetic number, because the mean of its divisors is an integer number (285454806455).

Almost surely, 2^{12453261391872} is an apocalyptic number.

12453261391872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12453261391872 is an abundant number, since it is smaller than the sum of its proper divisors (28652230737648).

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

12453261391872 is an equidigital number, since it uses as much as digits as its factorization.

12453261391872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96518988 (or 96518965 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 12453261391872 in words is "twelve trillion, four hundred fifty-three billion, two hundred sixty-one million, three hundred ninety-one thousand, eight hundred seventy-two".