6857836351169 has 4 divisors (see below), whose sum is σ = 7003747762944. Its totient is φ = 6711924939396.

The previous prime is 6857836351159. The next prime is 6857836351187. The reversal of 6857836351169 is 9611536387586.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6857836351169 is a prime.

It is a super-2 number, since 2×6857836351169² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6857836351099 and 6857836351108.

It is not an unprimeable number, because it can be changed into a prime (6857836351129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72955705817 + ... + 72955705910.

It is an arithmetic number, because the mean of its divisors is an integer number (1750936940736).

Almost surely, 2^{6857836351169} is an apocalyptic number.

It is an amenable number.

6857836351169 is a deficient number, since it is larger than the sum of its proper divisors (145911411775).

6857836351169 is a wasteful number, since it uses less digits than its factorization.

6857836351169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145911411774.

The product of its digits is 195955200, while the sum is 68.

The spelling of 6857836351169 in words is "six trillion, eight hundred fifty-seven billion, eight hundred thirty-six million, three hundred fifty-one thousand, one hundred sixty-nine".