636087227011 has 4 divisors (see below), whose sum is σ = 636093308752. Its totient is φ = 636081145272.

The previous prime is 636087226991. The next prime is 636087227021. The reversal of 636087227011 is 110722780636.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-636087227011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (636087227021) 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, 2881191 + ... + 3094096.

It is an arithmetic number, because the mean of its divisors is an integer number (159023327188).

Almost surely, 2^636087227011 is an apocalyptic number.

636087227011 is a deficient number, since it is larger than the sum of its proper divisors (6081741).

636087227011 is a wasteful number, since it uses less digits than its factorization.

636087227011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081740.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 636087227011 in words is "six hundred thirty-six billion, eighty-seven million, two hundred twenty-seven thousand, eleven".