444140041493 has 2 divisors, whose sum is σ = 444140041494. Its totient is φ = 444140041492.

The previous prime is 444140041427. The next prime is 444140041573. The reversal of 444140041493 is 394140041444.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441589488484 + 2550553009 = 664522^2 + 50503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444140041493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444140041993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222070020746 + 222070020747.

It is an arithmetic number, because the mean of its divisors is an integer number (222070020747).

Almost surely, 2^444140041493 is an apocalyptic number.

It is an amenable number.

444140041493 is a deficient number, since it is larger than the sum of its proper divisors (1).

444140041493 is an equidigital number, since it uses as much as digits as its factorization.

444140041493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 444140041493 in words is "four hundred forty-four billion, one hundred forty million, forty-one thousand, four hundred ninety-three".