6843657542 has 8 divisors (see below), whose sum is σ = 10459174896. Its totient is φ = 3357265912.

The previous prime is 6843657511. The next prime is 6843657563. The reversal of 6843657542 is 2457563486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32281298 + ... + 32281509.

It is an arithmetic number, because the mean of its divisors is an integer number (1307396862).

Almost surely, 2^6843657542 is an apocalyptic number.

6843657542 is a deficient number, since it is larger than the sum of its proper divisors (3615517354).

6843657542 is a wasteful number, since it uses less digits than its factorization.

6843657542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64562862.

The product of its digits is 4838400, while the sum is 50.

The square root of 6843657542 is about 82726.4017227874. The cubic root of 6843657542 is about 1898.5822796161.

The spelling of 6843657542 in words is "six billion, eight hundred forty-three million, six hundred fifty-seven thousand, five hundred forty-two".