6718834420 has 12 divisors (see below), whose sum is σ = 14109552324. Its totient is φ = 2687533760.

The previous prime is 6718834411. The next prime is 6718834439. The reversal of 6718834420 is 244388176.

It can be written as a sum of positive squares in 2 ways, for example, as 2256060004 + 4462774416 = 47498^2 + 66804^2 .

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, 167970841 + ... + 167970880.

It is an arithmetic number, because the mean of its divisors is an integer number (1175796027).

Almost surely, 2^6718834420 is an apocalyptic number.

It is an amenable number.

6718834420 is an abundant number, since it is smaller than the sum of its proper divisors (7390717904).

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

6718834420 is a wasteful number, since it uses less digits than its factorization.

6718834420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335941730 (or 335941728 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 6718834420 is about 81968.4965093297. The cubic root of 6718834420 is about 1886.9684816563.

The spelling of 6718834420 in words is "six billion, seven hundred eighteen million, eight hundred thirty-four thousand, four hundred twenty".