6938128317 has 8 divisors (see below), whose sum is σ = 9258469024. Its totient is φ = 4621603248.

The previous prime is 6938128313. The next prime is 6938128333. The reversal of 6938128317 is 7138218396.

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

It is not a de Polignac number, because 6938128317 - 2² = 6938128313 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 (6938128313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949663 + ... + 956940.

It is an arithmetic number, because the mean of its divisors is an integer number (1157308628).

Almost surely, 2^6938128317 is an apocalyptic number.

It is an amenable number.

6938128317 is a deficient number, since it is larger than the sum of its proper divisors (2320340707).

6938128317 is a wasteful number, since it uses less digits than its factorization.

6938128317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907819.

The product of its digits is 435456, while the sum is 48.

The square root of 6938128317 is about 83295.4279477571. The cubic root of 6938128317 is about 1907.2784825903.

The spelling of 6938128317 in words is "six billion, nine hundred thirty-eight million, one hundred twenty-eight thousand, three hundred seventeen".