1244321278248 has 32 divisors (see below), whose sum is σ = 3274529680800. Its totient is φ = 392943561408.

The previous prime is 1244321278247. The next prime is 1244321278261. The reversal of 1244321278248 is 8428721234421.

It is a junction number, because it is equal to n+sod(n) for n = 1244321278197 and 1244321278206.

It is not an unprimeable number, because it can be changed into a prime (1244321278241) 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, 1364386911 + ... + 1364387822.

It is an arithmetic number, because the mean of its divisors is an integer number (102329052525).

Almost surely, 2^{1244321278248} is an apocalyptic number.

It is an amenable number.

1244321278248 is an abundant number, since it is smaller than the sum of its proper divisors (2030208402552).

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

1244321278248 is a wasteful number, since it uses less digits than its factorization.

1244321278248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728774761 (or 2728774757 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 48.

The spelling of 1244321278248 in words is "one trillion, two hundred forty-four billion, three hundred twenty-one million, two hundred seventy-eight thousand, two hundred forty-eight".