444191353513 has 2 divisors, whose sum is σ = 444191353514. Its totient is φ = 444191353512.

The previous prime is 444191353483. The next prime is 444191353517. The reversal of 444191353513 is 315353191444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338727492009 + 105463861504 = 582003^2 + 324752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444191353513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444191353513.

It is not a weakly prime, because it can be changed into another prime (444191353517) 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, 222095676756 + 222095676757.

It is an arithmetic number, because the mean of its divisors is an integer number (222095676757).

Almost surely, 2^444191353513 is an apocalyptic number.

It is an amenable number.

444191353513 is a deficient number, since it is larger than the sum of its proper divisors (1).

444191353513 is an equidigital number, since it uses as much as digits as its factorization.

444191353513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The spelling of 444191353513 in words is "four hundred forty-four billion, one hundred ninety-one million, three hundred fifty-three thousand, five hundred thirteen".