6678534863 has 48 divisors (see below), whose sum is σ = 9428095488. Its totient is φ = 4594708800.

The previous prime is 6678534853. The next prime is 6678534871. The reversal of 6678534863 is 3684358766.

It is not a de Polignac number, because 6678534863 - 2¹⁴ = 6678518479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6678534799 and 6678534808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678534853) 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 47 ways as a sum of consecutive naturals, for example, 240068 + ... + 266438.

It is an arithmetic number, because the mean of its divisors is an integer number (196418656).

Almost surely, 2^6678534863 is an apocalyptic number.

6678534863 is a deficient number, since it is larger than the sum of its proper divisors (2749560625).

6678534863 is a wasteful number, since it uses less digits than its factorization.

6678534863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26436 (or 26425 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 56.

The square root of 6678534863 is about 81722.3033388071. The cubic root of 6678534863 is about 1883.1882357077.

The spelling of 6678534863 in words is "six billion, six hundred seventy-eight million, five hundred thirty-four thousand, eight hundred sixty-three".