39444324473 has 4 divisors (see below), whose sum is σ = 39887519220. Its totient is φ = 39001129728.

The previous prime is 39444324433. The next prime is 39444324497. The reversal of 39444324473 is 37442344493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37442344493 = 30119 ⋅1243147.

It can be written as a sum of positive squares in 2 ways, for example, as 19124677264 + 20319647209 = 138292^2 + 142547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39444324473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39444324433) 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, 221597240 + ... + 221597417.

It is an arithmetic number, because the mean of its divisors is an integer number (9971879805).

Almost surely, 2^39444324473 is an apocalyptic number.

It is an amenable number.

39444324473 is a deficient number, since it is larger than the sum of its proper divisors (443194747).

39444324473 is an equidigital number, since it uses as much as digits as its factorization.

39444324473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443194746.

The product of its digits is 3483648, while the sum is 47.

The spelling of 39444324473 in words is "thirty-nine billion, four hundred forty-four million, three hundred twenty-four thousand, four hundred seventy-three".