6718021874 has 8 divisors (see below), whose sum is σ = 10078990380. Its totient is φ = 3358358416.

The previous prime is 6718021867. The next prime is 6718021879. The reversal of 6718021874 is 4781208176.

It can be written as a sum of positive squares in 2 ways, for example, as 6688786225 + 29235649 = 81785^2 + 5407^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6718021879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313289 + ... + 334044.

Almost surely, 2^6718021874 is an apocalyptic number.

6718021874 is a deficient number, since it is larger than the sum of its proper divisors (3360968506).

6718021874 is a wasteful number, since it uses less digits than its factorization.

6718021874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652524.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 6718021874 is about 81963.5399064730. The cubic root of 6718021874 is about 1886.8924113933.

The spelling of 6718021874 in words is "six billion, seven hundred eighteen million, twenty-one thousand, eight hundred seventy-four".