6478859999 has 2 divisors, whose sum is σ = 6478860000. Its totient is φ = 6478859998.

The previous prime is 6478859971. The next prime is 6478860019. The reversal of 6478859999 is 9999588746.

6478859999 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6478859999 - 2⁸ = 6478859743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6478859909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3239429999 + 3239430000.

It is an arithmetic number, because the mean of its divisors is an integer number (3239430000).

Almost surely, 2^6478859999 is an apocalyptic number.

6478859999 is a deficient number, since it is larger than the sum of its proper divisors (1).

6478859999 is an equidigital number, since it uses as much as digits as its factorization.

6478859999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352719360, while the sum is 74.

The square root of 6478859999 is about 80491.3659903968. The cubic root of 6478859999 is about 1864.2301685134.

The spelling of 6478859999 in words is "six billion, four hundred seventy-eight million, eight hundred fifty-nine thousand, nine hundred ninety-nine".