39043633445 has 18 divisors (see below), whose sum is σ = 47392375986. Its totient is φ = 30878964480.

The previous prime is 39043633397. The next prime is 39043633451. The reversal of 39043633445 is 54433634093.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2791854244 + 36251779201 = 52838^2 + 190399^2 .

It is not a de Polignac number, because 39043633445 - 2¹⁴ = 39043617061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39043633396 and 39043633405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 42857540 + ... + 42858450.

It is an arithmetic number, because the mean of its divisors is an integer number (2632909777).

Almost surely, 2^39043633445 is an apocalyptic number.

It is an amenable number.

39043633445 is a deficient number, since it is larger than the sum of its proper divisors (8348742541).

39043633445 is an frugal number, since it uses more digits than its factorization.

39043633445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 44.

The spelling of 39043633445 in words is "thirty-nine billion, forty-three million, six hundred thirty-three thousand, four hundred forty-five".