6857286428 has 48 divisors (see below), whose sum is σ = 13057766400. Its totient is φ = 3138963840.

The previous prime is 6857286421. The next prime is 6857286431. The reversal of 6857286428 is 8246827586.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6857286421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2135288 + ... + 2138496.

It is an arithmetic number, because the mean of its divisors is an integer number (272036800).

Almost surely, 2^6857286428 is an apocalyptic number.

It is an amenable number.

6857286428 is a deficient number, since it is larger than the sum of its proper divisors (6200479972).

6857286428 is a wasteful number, since it uses less digits than its factorization.

6857286428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170 (or 4168 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 56.

The square root of 6857286428 is about 82808.7340079535. The cubic root of 6857286428 is about 1899.8417622604.

The spelling of 6857286428 in words is "six billion, eight hundred fifty-seven million, two hundred eighty-six thousand, four hundred twenty-eight".