39444057043 has 4 divisors (see below), whose sum is σ = 39483150280. Its totient is φ = 39404963808.

The previous prime is 39444057041. The next prime is 39444057073. The reversal of 39444057043 is 34075044493.

39444057043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39444057043 - 2¹ = 39444057041 is a prime.

It is a super-2 number, since 2×39444057043² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39444057041) 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, 19545105 + ... + 19547122.

It is an arithmetic number, because the mean of its divisors is an integer number (9870787570).

Almost surely, 2^39444057043 is an apocalyptic number.

39444057043 is a deficient number, since it is larger than the sum of its proper divisors (39093237).

39444057043 is a wasteful number, since it uses less digits than its factorization.

39444057043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39093236.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 39444057043 in words is "thirty-nine billion, four hundred forty-four million, fifty-seven thousand, forty-three".