6385440911 has 2 divisors, whose sum is σ = 6385440912. Its totient is φ = 6385440910.

The previous prime is 6385440881. The next prime is 6385440931. The reversal of 6385440911 is 1190445836.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6385440911 - 2⁶ = 6385440847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6385440931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3192720455 + 3192720456.

It is an arithmetic number, because the mean of its divisors is an integer number (3192720456).

Almost surely, 2^6385440911 is an apocalyptic number.

6385440911 is a deficient number, since it is larger than the sum of its proper divisors (1).

6385440911 is an equidigital number, since it uses as much as digits as its factorization.

6385440911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 6385440911 is about 79908.9538850309. The cubic root of 6385440911 is about 1855.2266040137.

The spelling of 6385440911 in words is "six billion, three hundred eighty-five million, four hundred forty thousand, nine hundred eleven".