40686120011 has 4 divisors (see below), whose sum is σ = 41176314312. Its totient is φ = 40195925712.

The previous prime is 40686120001. The next prime is 40686120017. The reversal of 40686120011 is 11002168604.

40686120011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40686120011 - 2³⁰ = 39612378187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40686120017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245097026 + ... + 245097191.

It is an arithmetic number, because the mean of its divisors is an integer number (10294078578).

Almost surely, 2^40686120011 is an apocalyptic number.

40686120011 is a deficient number, since it is larger than the sum of its proper divisors (490194301).

40686120011 is an equidigital number, since it uses as much as digits as its factorization.

40686120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490194300.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 40686120011 its reverse (11002168604), we get a palindrome (51688288615).

The spelling of 40686120011 in words is "forty billion, six hundred eighty-six million, one hundred twenty thousand, eleven".