6678311853 has 4 divisors (see below), whose sum is σ = 8904415808. Its totient is φ = 4452207900.

The previous prime is 6678311819. The next prime is 6678311863. The reversal of 6678311853 is 3581138766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6678311853 - 2²⁰ = 6677263277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678311863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113051973 + ... + 1113051978.

It is an arithmetic number, because the mean of its divisors is an integer number (2226103952).

Almost surely, 2^6678311853 is an apocalyptic number.

It is an amenable number.

6678311853 is a deficient number, since it is larger than the sum of its proper divisors (2226103955).

6678311853 is a wasteful number, since it uses less digits than its factorization.

6678311853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226103954.

The product of its digits is 725760, while the sum is 48.

The square root of 6678311853 is about 81720.9388896138. The cubic root of 6678311853 is about 1883.1672742996.

The spelling of 6678311853 in words is "six billion, six hundred seventy-eight million, three hundred eleven thousand, eight hundred fifty-three".