6678812837 has 2 divisors, whose sum is σ = 6678812838. Its totient is φ = 6678812836.

The previous prime is 6678812827. The next prime is 6678812843. The reversal of 6678812837 is 7382188766.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6353046436 + 325766401 = 79706^2 + 18049^2 .

It is a cyclic number.

It is not a de Polignac number, because 6678812837 - 2⁶ = 6678812773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6678812827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339406418 + 3339406419.

It is an arithmetic number, because the mean of its divisors is an integer number (3339406419).

Almost surely, 2^6678812837 is an apocalyptic number.

It is an amenable number.

6678812837 is a deficient number, since it is larger than the sum of its proper divisors (1).

6678812837 is an equidigital number, since it uses as much as digits as its factorization.

6678812837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5419008, while the sum is 56.

The square root of 6678812837 is about 81724.0040440996. The cubic root of 6678812837 is about 1883.2143627008.

The spelling of 6678812837 in words is "six billion, six hundred seventy-eight million, eight hundred twelve thousand, eight hundred thirty-seven".