20761400271 has 16 divisors (see below), whose sum is σ = 28903555584. Its totient is φ = 13230844704.

The previous prime is 20761400269. The next prime is 20761400323. The reversal of 20761400271 is 17200416702.

It is not a de Polignac number, because 20761400271 - 2¹ = 20761400269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20761400221) 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, 17265 + ... + 204501.

It is an arithmetic number, because the mean of its divisors is an integer number (1806472224).

Almost surely, 2^20761400271 is an apocalyptic number.

20761400271 is a deficient number, since it is larger than the sum of its proper divisors (8142155313).

20761400271 is a wasteful number, since it uses less digits than its factorization.

20761400271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188870.

The product of its (nonzero) digits is 4704, while the sum is 30.

Adding to 20761400271 its reverse (17200416702), we get a palindrome (37961816973).

The spelling of 20761400271 in words is "twenty billion, seven hundred sixty-one million, four hundred thousand, two hundred seventy-one".