1244271326928 has 40 divisors (see below), whose sum is σ = 3673562966208. Its totient is φ = 355506093312.

The previous prime is 1244271326911. The next prime is 1244271326933. The reversal of 1244271326928 is 8296231724421.

It is a super-2 number, since 2×1244271326928² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851593901 + ... + 1851594572.

Almost surely, 2^{1244271326928} is an apocalyptic number.

It is an amenable number.

1244271326928 is an abundant number, since it is smaller than the sum of its proper divisors (2429291639280).

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

1244271326928 is a wasteful number, since it uses less digits than its factorization.

1244271326928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703188491 (or 3703188485 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The spelling of 1244271326928 in words is "one trillion, two hundred forty-four billion, two hundred seventy-one million, three hundred twenty-six thousand, nine hundred twenty-eight".