6538686011 has 16 divisors (see below), whose sum is σ = 8086122240. Its totient is φ = 5198217120.

The previous prime is 6538685947. The next prime is 6538686017. The reversal of 6538686011 is 1106868356.

It is a cyclic number.

It is not a de Polignac number, because 6538686011 - 2⁶ = 6538685947 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6538686017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1200575 + ... + 1206008.

It is an arithmetic number, because the mean of its divisors is an integer number (505382640).

Almost surely, 2^6538686011 is an apocalyptic number.

6538686011 is a deficient number, since it is larger than the sum of its proper divisors (1547436229).

6538686011 is a wasteful number, since it uses less digits than its factorization.

6538686011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406626.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 6538686011 is about 80862.1420134293. The cubic root of 6538686011 is about 1869.9507180050.

The spelling of 6538686011 in words is "six billion, five hundred thirty-eight million, six hundred eighty-six thousand, eleven".