4044440013785 has 32 divisors (see below), whose sum is σ = 5264487823392. Its totient is φ = 2970763755520.

The previous prime is 4044440013781. The next prime is 4044440013787. The reversal of 4044440013785 is 5873100444404.

It can be written as a sum of positive squares in 16 ways, for example, as 98412709264 + 3946027304521 = 313708^2 + 1986461^2 .

It is not a de Polignac number, because 4044440013785 - 2² = 4044440013781 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4044440013781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80328479 + ... + 80378811.

It is an arithmetic number, because the mean of its divisors is an integer number (164515244481).

Almost surely, 2^{4044440013785} is an apocalyptic number.

It is an amenable number.

4044440013785 is a deficient number, since it is larger than the sum of its proper divisors (1220047809607).

4044440013785 is a wasteful number, since it uses less digits than its factorization.

4044440013785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73453.

The product of its (nonzero) digits is 860160, while the sum is 44.

The spelling of 4044440013785 in words is "four trillion, forty-four billion, four hundred forty million, thirteen thousand, seven hundred eighty-five".