6843242878 has 4 divisors (see below), whose sum is σ = 10264864320. Its totient is φ = 3421621438.

The previous prime is 6843242843. The next prime is 6843242891. The reversal of 6843242878 is 8782423486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710810718 + ... + 1710810721.

It is an arithmetic number, because the mean of its divisors is an integer number (2566216080).

Almost surely, 2^6843242878 is an apocalyptic number.

6843242878 is a deficient number, since it is larger than the sum of its proper divisors (3421621442).

6843242878 is a wasteful number, since it uses less digits than its factorization.

6843242878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421621441.

The product of its digits is 4128768, while the sum is 52.

The square root of 6843242878 is about 82723.8954474461. The cubic root of 6843242878 is about 1898.5439331803.

The spelling of 6843242878 in words is "six billion, eight hundred forty-three million, two hundred forty-two thousand, eight hundred seventy-eight".