6671784894 has 8 divisors (see below), whose sum is σ = 13343569800. Its totient is φ = 2223928296.

The previous prime is 6671784883. The next prime is 6671784913. The reversal of 6671784894 is 4984871766.

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

6671784894 is an admirable number.

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, 555982069 + ... + 555982080.

It is an arithmetic number, because the mean of its divisors is an integer number (1667946225).

Almost surely, 2^6671784894 is an apocalyptic number.

6671784894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6671784894 is a wasteful number, since it uses less digits than its factorization.

6671784894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111964154.

The product of its digits is 16257024, while the sum is 60.

The square root of 6671784894 is about 81680.9946927680. The cubic root of 6671784894 is about 1882.5535781890.

The spelling of 6671784894 in words is "six billion, six hundred seventy-one million, seven hundred eighty-four thousand, eight hundred ninety-four".