444213312399 has 96 divisors (see below), whose sum is σ = 720571438080. Its totient is φ = 262056093696.

The previous prime is 444213312397. The next prime is 444213312401. The reversal of 444213312399 is 993213312444.

444213312399 is a `hidden beast` number, since 4 + 44 + 213 + 3 + 1 + 2 + 399 = 666.

It is an interprime number because it is at equal distance from previous prime (444213312397) and next prime (444213312401).

It is not a de Polignac number, because 444213312399 - 2¹ = 444213312397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444213312391) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 248579584 + ... + 248581370.

It is an arithmetic number, because the mean of its divisors is an integer number (7505952480).

Almost surely, 2^444213312399 is an apocalyptic number.

444213312399 is a deficient number, since it is larger than the sum of its proper divisors (276358125681).

444213312399 is a wasteful number, since it uses less digits than its factorization.

444213312399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429 (or 2426 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

Adding to 444213312399 its sum of digits (45), we get a palindrome (444213312444).

The spelling of 444213312399 in words is "four hundred forty-four billion, two hundred thirteen million, three hundred twelve thousand, three hundred ninety-nine".