6678463357 has 2 divisors, whose sum is σ = 6678463358. Its totient is φ = 6678463356.

The previous prime is 6678463339. The next prime is 6678463367. The reversal of 6678463357 is 7533648766.

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., 4712959801 + 1965503556 = 68651^2 + 44334^2 .

It is a cyclic number.

It is not a de Polignac number, because 6678463357 - 2⁷ = 6678463229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6678463298 and 6678463307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6678463367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339231678 + 3339231679.

It is an arithmetic number, because the mean of its divisors is an integer number (3339231679).

Almost surely, 2^6678463357 is an apocalyptic number.

It is an amenable number.

6678463357 is a deficient number, since it is larger than the sum of its proper divisors (1).

6678463357 is an equidigital number, since it uses as much as digits as its factorization.

6678463357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 55.

The square root of 6678463357 is about 81721.8658438487. The cubic root of 6678463357 is about 1883.1815146857.

The spelling of 6678463357 in words is "six billion, six hundred seventy-eight million, four hundred sixty-three thousand, three hundred fifty-seven".