6388668859 has 2 divisors, whose sum is σ = 6388668860. Its totient is φ = 6388668858.

The previous prime is 6388668829. The next prime is 6388668877. The reversal of 6388668859 is 9588668836.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6388668859 - 2¹⁷ = 6388537787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6388668794 and 6388668803.

It is not a weakly prime, because it can be changed into another prime (6388668809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194334429 + 3194334430.

It is an arithmetic number, because the mean of its divisors is an integer number (3194334430).

Almost surely, 2^6388668859 is an apocalyptic number.

6388668859 is a deficient number, since it is larger than the sum of its proper divisors (1).

6388668859 is an equidigital number, since it uses as much as digits as its factorization.

6388668859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119439360, while the sum is 67.

The square root of 6388668859 is about 79929.1489945940. The cubic root of 6388668859 is about 1855.5391674563.

The spelling of 6388668859 in words is "six billion, three hundred eighty-eight million, six hundred sixty-eight thousand, eight hundred fifty-nine".