444343749919 has 2 divisors, whose sum is σ = 444343749920. Its totient is φ = 444343749918.

The previous prime is 444343749851. The next prime is 444343749923. The reversal of 444343749919 is 919947343444.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444343749919 - 2⁷ = 444343749791 is a prime.

It is a super-2 number, since 2×444343749919² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444343743919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222171874959 + 222171874960.

It is an arithmetic number, because the mean of its divisors is an integer number (222171874960).

Almost surely, 2^444343749919 is an apocalyptic number.

444343749919 is a deficient number, since it is larger than the sum of its proper divisors (1).

444343749919 is an equidigital number, since it uses as much as digits as its factorization.

444343749919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47029248, while the sum is 61.

The spelling of 444343749919 in words is "four hundred forty-four billion, three hundred forty-three million, seven hundred forty-nine thousand, nine hundred nineteen".