444462714649 has 4 divisors (see below), whose sum is σ = 445882723636. Its totient is φ = 443042705664.

The previous prime is 444462714623. The next prime is 444462714769. The reversal of 444462714649 is 946417264444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177550991424 + 266911723225 = 421368^2 + 516635^2 .

It is a cyclic number.

It is not a de Polignac number, because 444462714649 - 2⁵ = 444462714617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444462714649.

It is not an unprimeable number, because it can be changed into a prime (444462714049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710004024 + ... + 710004649.

It is an arithmetic number, because the mean of its divisors is an integer number (111470680909).

Almost surely, 2^444462714649 is an apocalyptic number.

It is an amenable number.

444462714649 is a deficient number, since it is larger than the sum of its proper divisors (1420008987).

444462714649 is a wasteful number, since it uses less digits than its factorization.

444462714649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420008986.

The product of its digits is 18579456, while the sum is 55.

The spelling of 444462714649 in words is "four hundred forty-four billion, four hundred sixty-two million, seven hundred fourteen thousand, six hundred forty-nine".