6678813047 has 2 divisors, whose sum is σ = 6678813048. Its totient is φ = 6678813046.

The previous prime is 6678813007. The next prime is 6678813091. The reversal of 6678813047 is 7403188766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6678813047 - 2¹² = 6678808951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6678812986 and 6678813004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6678813007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339406523 + 3339406524.

It is an arithmetic number, because the mean of its divisors is an integer number (3339406524).

Almost surely, 2^6678813047 is an apocalyptic number.

6678813047 is a deficient number, since it is larger than the sum of its proper divisors (1).

6678813047 is an equidigital number, since it uses as much as digits as its factorization.

6678813047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 6678813047 is about 81724.0053289118. The cubic root of 6678813047 is about 1883.2143824386.

The spelling of 6678813047 in words is "six billion, six hundred seventy-eight million, eight hundred thirteen thousand, forty-seven".