440743737493 has 2 divisors, whose sum is σ = 440743737494. Its totient is φ = 440743737492.

The previous prime is 440743737407. The next prime is 440743737509. The reversal of 440743737493 is 394737347044.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360836885809 + 79906851684 = 600697^2 + 282678^2 .

It is a cyclic number.

It is not a de Polignac number, because 440743737493 - 2¹³ = 440743729301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440743737403) by changing a digit.

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 as a sum of consecutive naturals, namely, 220371868746 + 220371868747.

It is an arithmetic number, because the mean of its divisors is an integer number (220371868747).

Almost surely, 2^440743737493 is an apocalyptic number.

It is an amenable number.

440743737493 is a deficient number, since it is larger than the sum of its proper divisors (1).

440743737493 is an equidigital number, since it uses as much as digits as its factorization.

440743737493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21337344, while the sum is 55.

The spelling of 440743737493 in words is "four hundred forty billion, seven hundred forty-three million, seven hundred thirty-seven thousand, four hundred ninety-three".