6779681853 has 16 divisors (see below), whose sum is σ = 10363543680. Its totient is φ = 3861878976.

The previous prime is 6779681849. The next prime is 6779681879. The reversal of 6779681853 is 3581869776.

It is not a de Polignac number, because 6779681853 - 2² = 6779681849 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6779681893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502558 + ... + 515871.

It is an arithmetic number, because the mean of its divisors is an integer number (647721480).

Almost surely, 2^6779681853 is an apocalyptic number.

It is an amenable number.

6779681853 is a deficient number, since it is larger than the sum of its proper divisors (3583861827).

6779681853 is a wasteful number, since it uses less digits than its factorization.

6779681853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018756.

The product of its digits is 15240960, while the sum is 60.

The square root of 6779681853 is about 82338.8234856438. The cubic root of 6779681853 is about 1892.6476570497.

The spelling of 6779681853 in words is "six billion, seven hundred seventy-nine million, six hundred eighty-one thousand, eight hundred fifty-three".