6857857995 has 16 divisors (see below), whose sum is σ = 11000789280. Its totient is φ = 3648118784.

The previous prime is 6857857957. The next prime is 6857858009. The reversal of 6857857995 is 5997587586.

It is a cyclic number.

It is not a de Polignac number, because 6857857995 - 2⁶ = 6857857931 is a prime.

It is an unprimeable number.

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, 581814 + ... + 593483.

It is an arithmetic number, because the mean of its divisors is an integer number (687549330).

Almost surely, 2^6857857995 is an apocalyptic number.

6857857995 is a deficient number, since it is larger than the sum of its proper divisors (4142931285).

6857857995 is a wasteful number, since it uses less digits than its factorization.

6857857995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175694.

The product of its digits is 190512000, while the sum is 69.

The square root of 6857857995 is about 82812.1850635521. The cubic root of 6857857995 is about 1899.8945458554.

The spelling of 6857857995 in words is "six billion, eight hundred fifty-seven million, eight hundred fifty-seven thousand, nine hundred ninety-five".