6857843934 has 32 divisors (see below), whose sum is σ = 13876611840. Its totient is φ = 2259194112.

The previous prime is 6857843903. The next prime is 6857843947. The reversal of 6857843934 is 4393487586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424497 + ... + 440355.

It is an arithmetic number, because the mean of its divisors is an integer number (433644120).

Almost surely, 2^6857843934 is an apocalyptic number.

6857843934 is an abundant number, since it is smaller than the sum of its proper divisors (7018767906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6857843934 is a wasteful number, since it uses less digits than its factorization.

6857843934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16704.

The product of its digits is 17418240, while the sum is 57.

The square root of 6857843934 is about 82812.1001665819. The cubic root of 6857843934 is about 1899.8932473724.

The spelling of 6857843934 in words is "six billion, eight hundred fifty-seven million, eight hundred forty-three thousand, nine hundred thirty-four".