39389666317 has 4 divisors (see below), whose sum is σ = 40057287840. Its totient is φ = 38722044796.

The previous prime is 39389666311. The next prime is 39389666387. The reversal of 39389666317 is 71366698393.

39389666317 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 39389666317 - 2¹¹ = 39389664269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39389666311) 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, 333810673 + ... + 333810790.

It is an arithmetic number, because the mean of its divisors is an integer number (10014321960).

Almost surely, 2^39389666317 is an apocalyptic number.

It is an amenable number.

39389666317 is a deficient number, since it is larger than the sum of its proper divisors (667621523).

39389666317 is an equidigital number, since it uses as much as digits as its factorization.

39389666317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667621522.

The product of its digits is 26453952, while the sum is 61.

The spelling of 39389666317 in words is "thirty-nine billion, three hundred eighty-nine million, six hundred sixty-six thousand, three hundred seventeen".