6842398171 has 6 divisors (see below), whose sum is σ = 7959524460. Its totient is φ = 5864912676.

The previous prime is 6842398117. The next prime is 6842398291. The reversal of 6842398171 is 1718932486.

It is not a de Polignac number, because 6842398171 - 2¹¹ = 6842396123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 139640779 = 6842398171 / (6 + 8 + 4 + 2 + 3 + 9 + 8 + 1 + 7 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6842398471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69820341 + ... + 69820438.

It is an arithmetic number, because the mean of its divisors is an integer number (1326587410).

Almost surely, 2^6842398171 is an apocalyptic number.

6842398171 is a deficient number, since it is larger than the sum of its proper divisors (1117126289).

6842398171 is a wasteful number, since it uses less digits than its factorization.

6842398171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139640793 (or 139640786 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 6842398171 is about 82718.7897094729. The cubic root of 6842398171 is about 1898.4658133294.

The spelling of 6842398171 in words is "six billion, eight hundred forty-two million, three hundred ninety-eight thousand, one hundred seventy-one".