20382984271 has 16 divisors (see below), whose sum is σ = 22014211968. Its totient is φ = 18760896000.

The previous prime is 20382984269. The next prime is 20382984329. The reversal of 20382984271 is 17248928302.

It is a cyclic number.

It is not a de Polignac number, because 20382984271 - 2¹ = 20382984269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20382984221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8668746 + ... + 8671096.

It is an arithmetic number, because the mean of its divisors is an integer number (1375888248).

Almost surely, 2^20382984271 is an apocalyptic number.

20382984271 is a deficient number, since it is larger than the sum of its proper divisors (1631227697).

20382984271 is a wasteful number, since it uses less digits than its factorization.

20382984271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002.

The product of its (nonzero) digits is 387072, while the sum is 46.

It can be divided in two parts, 20382 and 984271, that added together give a triangular number (1004653 = T₁₄₁₇).

The spelling of 20382984271 in words is "twenty billion, three hundred eighty-two million, nine hundred eighty-four thousand, two hundred seventy-one".