20109860271 has 6 divisors (see below), whose sum is σ = 29047575960. Its totient is φ = 13406573508.

The previous prime is 20109860263. The next prime is 20109860297. The reversal of 20109860271 is 17206890102.

It is not a de Polignac number, because 20109860271 - 2³ = 20109860263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20109820271) 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 5 ways as a sum of consecutive naturals, for example, 1117214451 + ... + 1117214468.

It is an arithmetic number, because the mean of its divisors is an integer number (4841262660).

Almost surely, 2^20109860271 is an apocalyptic number.

20109860271 is a deficient number, since it is larger than the sum of its proper divisors (8937715689).

20109860271 is a wasteful number, since it uses less digits than its factorization.

20109860271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234428925 (or 2234428922 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 20109860271 in words is "twenty billion, one hundred nine million, eight hundred sixty thousand, two hundred seventy-one".