39394449393 has 16 divisors (see below), whose sum is σ = 56664456576. Its totient is φ = 24200709120.

The previous prime is 39394449371. The next prime is 39394449491.

39394449393 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 39394449393 - 2⁵ = 39394449361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39394441393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852813 + ... + 897818.

It is an arithmetic number, because the mean of its divisors is an integer number (3541528536).

Almost surely, 2^39394449393 is an apocalyptic number.

It is an amenable number.

39394449393 is a deficient number, since it is larger than the sum of its proper divisors (17270007183).

39394449393 is a wasteful number, since it uses less digits than its factorization.

39394449393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751224.

The product of its digits is 34012224, while the sum is 60.

The spelling of 39394449393 in words is "thirty-nine billion, three hundred ninety-four million, four hundred forty-nine thousand, three hundred ninety-three".