444340666771 has 4 divisors (see below), whose sum is σ = 445857188112. Its totient is φ = 442824145432.

The previous prime is 444340666769. The next prime is 444340666787. The reversal of 444340666771 is 177666043444.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 444340666771 - 2¹ = 444340666769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444340666751) 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, 758260231 + ... + 758260816.

It is an arithmetic number, because the mean of its divisors is an integer number (111464297028).

Almost surely, 2^444340666771 is an apocalyptic number.

444340666771 is a deficient number, since it is larger than the sum of its proper divisors (1516521341).

444340666771 is a wasteful number, since it uses less digits than its factorization.

444340666771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516521340.

The product of its (nonzero) digits is 8128512, while the sum is 52.

It can be divided in two parts, 444340 and 666771, that added together give a palindrome (1111111).

The spelling of 444340666771 in words is "four hundred forty-four billion, three hundred forty million, six hundred sixty-six thousand, seven hundred seventy-one".