6400244011 has 4 divisors (see below), whose sum is σ = 7314564592. Its totient is φ = 5485923432.

The previous prime is 6400244003. The next prime is 6400244023. The reversal of 6400244011 is 1104420046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6400244011 - 2³ = 6400244003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6400244041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 457160280 + ... + 457160293.

It is an arithmetic number, because the mean of its divisors is an integer number (1828641148).

Almost surely, 2^6400244011 is an apocalyptic number.

6400244011 is a deficient number, since it is larger than the sum of its proper divisors (914320581).

6400244011 is an equidigital number, since it uses as much as digits as its factorization.

6400244011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914320580.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 6400244011 is about 80001.5250542138. The cubic root of 6400244011 is about 1856.6591289522.

Adding to 6400244011 its reverse (1104420046), we get a palindrome (7504664057).

The spelling of 6400244011 in words is "six billion, four hundred million, two hundred forty-four thousand, eleven".