6678401467 has 2 divisors, whose sum is σ = 6678401468. Its totient is φ = 6678401466.

The previous prime is 6678401449. The next prime is 6678401479. The reversal of 6678401467 is 7641048766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6678401467 - 2⁷ = 6678401339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6678401467.

It is not a weakly prime, because it can be changed into another prime (6678401437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339200733 + 3339200734.

It is an arithmetic number, because the mean of its divisors is an integer number (3339200734).

Almost surely, 2^6678401467 is an apocalyptic number.

6678401467 is a deficient number, since it is larger than the sum of its proper divisors (1).

6678401467 is an equidigital number, since it uses as much as digits as its factorization.

6678401467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The square root of 6678401467 is about 81721.4871805451. The cubic root of 6678401467 is about 1883.1756974561.

The spelling of 6678401467 in words is "six billion, six hundred seventy-eight million, four hundred one thousand, four hundred sixty-seven".