6390008899 has 2 divisors, whose sum is σ = 6390008900. Its totient is φ = 6390008898.

The previous prime is 6390008887. The next prime is 6390009007. The reversal of 6390008899 is 9988000936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6390008899 - 2⁷ = 6390008771 is a prime.

It is not a weakly prime, because it can be changed into another prime (6390008819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195004449 + 3195004450.

It is an arithmetic number, because the mean of its divisors is an integer number (3195004450).

Almost surely, 2^6390008899 is an apocalyptic number.

6390008899 is a deficient number, since it is larger than the sum of its proper divisors (1).

6390008899 is an equidigital number, since it uses as much as digits as its factorization.

6390008899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 6390008899 is about 79937.5312290791. The cubic root of 6390008899 is about 1855.6688931176.

The spelling of 6390008899 in words is "six billion, three hundred ninety million, eight thousand, eight hundred ninety-nine".