1944013383745 has 8 divisors (see below), whose sum is σ = 2340777891816. Its totient is φ = 1549902819456.

The previous prime is 1944013383727. The next prime is 1944013383797. The reversal of 1944013383745 is 5473833104491.

It can be written as a sum of positive squares in 4 ways, for example, as 1307692879936 + 636320503809 = 1143544^2 + 797697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1944013383745 - 2¹³ = 1944013375553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1944013383692 and 1944013383701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663484332 + ... + 663487261.

It is an arithmetic number, because the mean of its divisors is an integer number (292597236477).

Almost surely, 2^{1944013383745} is an apocalyptic number.

It is an amenable number.

1944013383745 is a deficient number, since it is larger than the sum of its proper divisors (396764508071).

1944013383745 is a wasteful number, since it uses less digits than its factorization.

1944013383745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326971891.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 1944013383745 in words is "one trillion, nine hundred forty-four billion, thirteen million, three hundred eighty-three thousand, seven hundred forty-five".