20062849209 has 32 divisors (see below), whose sum is σ = 29161958784. Its totient is φ = 12195256320.

The previous prime is 20062849207. The next prime is 20062849229. The reversal of 20062849209 is 90294826002.

It is not a de Polignac number, because 20062849209 - 2¹ = 20062849207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20062849207) 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 31 ways as a sum of consecutive naturals, for example, 2041702 + ... + 2051504.

It is an arithmetic number, because the mean of its divisors is an integer number (911311212).

Almost surely, 2^20062849209 is an apocalyptic number.

It is an amenable number.

20062849209 is a deficient number, since it is larger than the sum of its proper divisors (9099109575).

20062849209 is a wasteful number, since it uses less digits than its factorization.

20062849209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10457.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 20062849209 in words is "twenty billion, sixty-two million, eight hundred forty-nine thousand, two hundred nine".