20087286611 has 4 divisors (see below), whose sum is σ = 22956898992. Its totient is φ = 17217674232.

The previous prime is 20087286577. The next prime is 20087286671. The reversal of 20087286611 is 11668278002.

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-20087286611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20087286671) 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 3 ways as a sum of consecutive naturals, for example, 1434806180 + ... + 1434806193.

It is an arithmetic number, because the mean of its divisors is an integer number (5739224748).

Almost surely, 2^20087286611 is an apocalyptic number.

20087286611 is a deficient number, since it is larger than the sum of its proper divisors (2869612381).

20087286611 is an equidigital number, since it uses as much as digits as its factorization.

20087286611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869612380.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 20087286611 in words is "twenty billion, eighty-seven million, two hundred eighty-six thousand, six hundred eleven".