1944434344425 has 12 divisors (see below), whose sum is σ = 3214798116240. Its totient is φ = 1037031650320.

The previous prime is 1944434344417. The next prime is 1944434344429. The reversal of 1944434344425 is 5244434344491.

It is not a de Polignac number, because 1944434344425 - 2³ = 1944434344417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1944434344429) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12962895555 + ... + 12962895704.

It is an arithmetic number, because the mean of its divisors is an integer number (267899843020).

Almost surely, 2^{1944434344425} is an apocalyptic number.

1944434344425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1944434344425 is a deficient number, since it is larger than the sum of its proper divisors (1270363771815).

1944434344425 is a wasteful number, since it uses less digits than its factorization.

1944434344425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25925791272 (or 25925791267 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 51.

The spelling of 1944434344425 in words is "one trillion, nine hundred forty-four billion, four hundred thirty-four million, three hundred forty-four thousand, four hundred twenty-five".