12464447367145 has 4 divisors (see below), whose sum is σ = 14957336840580. Its totient is φ = 9971557893712.

The previous prime is 12464447367143. The next prime is 12464447367167. The reversal of 12464447367145 is 54176374446421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7952039044096 + 4512408323049 = 2819936^2 + 2124243^2 .

It is a cyclic number.

It is not a de Polignac number, because 12464447367145 - 2¹ = 12464447367143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12464447367145.

It is not an unprimeable number, because it can be changed into a prime (12464447367143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246444736710 + ... + 1246444736719.

It is an arithmetic number, because the mean of its divisors is an integer number (3739334210145).

Almost surely, 2^{12464447367145} is an apocalyptic number.

It is an amenable number.

12464447367145 is a deficient number, since it is larger than the sum of its proper divisors (2492889473435).

12464447367145 is an equidigital number, since it uses as much as digits as its factorization.

12464447367145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492889473434.

The product of its digits is 54190080, while the sum is 58.

The spelling of 12464447367145 in words is "twelve trillion, four hundred sixty-four billion, four hundred forty-seven million, three hundred sixty-seven thousand, one hundred forty-five".