6386729011 has 4 divisors (see below), whose sum is σ = 6878015872. Its totient is φ = 5895442152.

The previous prime is 6386728993. The next prime is 6386729021. The reversal of 6386729011 is 1109276836.

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 6386729011 - 2⁵ = 6386728979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6386729021) 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 in 3 ways as a sum of consecutive naturals, for example, 245643411 + ... + 245643436.

It is an arithmetic number, because the mean of its divisors is an integer number (1719503968).

Almost surely, 2^6386729011 is an apocalyptic number.

6386729011 is a deficient number, since it is larger than the sum of its proper divisors (491286861).

6386729011 is a wasteful number, since it uses less digits than its factorization.

6386729011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491286860.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 6386729011 is about 79917.0132762730. The cubic root of 6386729011 is about 1855.3513438582.

The spelling of 6386729011 in words is "six billion, three hundred eighty-six million, seven hundred twenty-nine thousand, eleven".