6390806386 has 16 divisors (see below), whose sum is σ = 9926864640. Its totient is φ = 3082075920.

The previous prime is 6390806377. The next prime is 6390806393. The reversal of 6390806386 is 6836080936.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885 + ... + 113071.

It is an arithmetic number, because the mean of its divisors is an integer number (620429040).

Almost surely, 2^6390806386 is an apocalyptic number.

6390806386 is a deficient number, since it is larger than the sum of its proper divisors (3536058254).

6390806386 is a wasteful number, since it uses less digits than its factorization.

6390806386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112209.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 6390806386 is about 79942.5192622799. The cubic root of 6390806386 is about 1855.7460870768.

The spelling of 6390806386 in words is "six billion, three hundred ninety million, eight hundred six thousand, three hundred eighty-six".