6857586812 has 12 divisors (see below), whose sum is σ = 12005242200. Its totient is φ = 3427517616.

The previous prime is 6857586811. The next prime is 6857586851. The reversal of 6857586812 is 2186857586.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6857586811) 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 3 ways as a sum of consecutive naturals, for example, 306803 + ... + 328394.

It is an arithmetic number, because the mean of its divisors is an integer number (1000436850).

Almost surely, 2^6857586812 is an apocalyptic number.

It is an amenable number.

6857586812 is a deficient number, since it is larger than the sum of its proper divisors (5147655388).

6857586812 is a wasteful number, since it uses less digits than its factorization.

6857586812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637900 (or 637898 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 56.

The square root of 6857586812 is about 82810.5477098177. The cubic root of 6857586812 is about 1899.8695027640.

The spelling of 6857586812 in words is "six billion, eight hundred fifty-seven million, five hundred eighty-six thousand, eight hundred twelve".