944719816321 has 2 divisors, whose sum is σ = 944719816322. Its totient is φ = 944719816320.

The previous prime is 944719816177. The next prime is 944719816363. The reversal of 944719816321 is 123618917449.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 723409786225 + 221310030096 = 850535^2 + 470436^2 .

It is an emirp because it is prime and its reverse (123618917449) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 944719816321 - 2¹⁷ = 944719685249 is a prime.

It is a super-3 number, since 3×944719816321³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (944719813321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472359908160 + 472359908161.

It is an arithmetic number, because the mean of its divisors is an integer number (472359908161).

Almost surely, 2^944719816321 is an apocalyptic number.

It is an amenable number.

944719816321 is a deficient number, since it is larger than the sum of its proper divisors (1).

944719816321 is an equidigital number, since it uses as much as digits as its factorization.

944719816321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 55.

The spelling of 944719816321 in words is "nine hundred forty-four billion, seven hundred nineteen million, eight hundred sixteen thousand, three hundred twenty-one".