20286684659 has 2 divisors, whose sum is σ = 20286684660. Its totient is φ = 20286684658.

The previous prime is 20286684571. The next prime is 20286684701. The reversal of 20286684659 is 95648668202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20286684659 - 2¹² = 20286680563 is a prime.

It is not a weakly prime, because it can be changed into another prime (20286684059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10143342329 + 10143342330.

It is an arithmetic number, because the mean of its divisors is an integer number (10143342330).

Almost surely, 2^20286684659 is an apocalyptic number.

20286684659 is a deficient number, since it is larger than the sum of its proper divisors (1).

20286684659 is an equidigital number, since it uses as much as digits as its factorization.

20286684659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 20286684659 in words is "twenty billion, two hundred eighty-six million, six hundred eighty-four thousand, six hundred fifty-nine".