39173393445 has 8 divisors (see below), whose sum is σ = 62677429536. Its totient is φ = 20892476496.

The previous prime is 39173393419. The next prime is 39173393453. The reversal of 39173393445 is 54439337193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39173393445 - 2²² = 39169199141 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1305779767 + ... + 1305779796.

It is an arithmetic number, because the mean of its divisors is an integer number (7834678692).

Almost surely, 2^39173393445 is an apocalyptic number.

It is an amenable number.

39173393445 is a deficient number, since it is larger than the sum of its proper divisors (23504036091).

39173393445 is a wasteful number, since it uses less digits than its factorization.

39173393445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611559571.

The product of its digits is 3674160, while the sum is 51.

The spelling of 39173393445 in words is "thirty-nine billion, one hundred seventy-three million, three hundred ninety-three thousand, four hundred forty-five".