1244645446344 has 64 divisors (see below), whose sum is σ = 3153585960000. Its totient is φ = 409306275840.

The previous prime is 1244645446337. The next prime is 1244645446397. The reversal of 1244645446344 is 4436445464421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310179 + ... + 1607949.

It is an arithmetic number, because the mean of its divisors is an integer number (49274780625).

Almost surely, 2^{1244645446344} is an apocalyptic number.

It is an amenable number.

1244645446344 is an abundant number, since it is smaller than the sum of its proper divisors (1908940513656).

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

1244645446344 is a wasteful number, since it uses less digits than its factorization.

1244645446344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298318 (or 1298314 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 51.

The spelling of 1244645446344 in words is "one trillion, two hundred forty-four billion, six hundred forty-five million, four hundred forty-six thousand, three hundred forty-four".