6781418673 has 16 divisors (see below), whose sum is σ = 9314289600. Its totient is φ = 4386158784.

The previous prime is 6781418663. The next prime is 6781418681. The reversal of 6781418673 is 3768141876.

It is not a de Polignac number, because 6781418673 - 2²⁰ = 6780370097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6781418603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157186 + ... + 195627.

It is an arithmetic number, because the mean of its divisors is an integer number (582143100).

Almost surely, 2^6781418673 is an apocalyptic number.

It is an amenable number.

6781418673 is a deficient number, since it is larger than the sum of its proper divisors (2532870927).

6781418673 is a wasteful number, since it uses less digits than its factorization.

6781418673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353008.

The product of its digits is 1354752, while the sum is 51.

The square root of 6781418673 is about 82349.3695968585. The cubic root of 6781418673 is about 1892.8092628453.

The spelling of 6781418673 in words is "six billion, seven hundred eighty-one million, four hundred eighteen thousand, six hundred seventy-three".