1944444444425 has 24 divisors (see below), whose sum is σ = 2755688208000. Its totient is φ = 1333269146880.

The previous prime is 1944444444407. The next prime is 1944444444451. The reversal of 1944444444425 is 5244444444491.

It is not a de Polignac number, because 1944444444425 - 2⁶ = 1944444444361 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3531956 + ... + 4045194.

It is an arithmetic number, because the mean of its divisors is an integer number (114820342000).

Almost surely, 2^{1944444444425} is an apocalyptic number.

It is an amenable number.

1944444444425 is a deficient number, since it is larger than the sum of its proper divisors (811243763575).

1944444444425 is a wasteful number, since it uses less digits than its factorization.

1944444444425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534905 (or 534900 counting only the distinct ones).

The product of its digits is 23592960, while the sum is 53.

It can be divided in two parts, 19 and 44444444425, that added together give a palindrome (44444444444).

The spelling of 1944444444425 in words is "one trillion, nine hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred twenty-five".