271785273138 has 48 divisors (see below), whose sum is σ = 623642325696. Its totient is φ = 85362789600.

The previous prime is 271785273131. The next prime is 271785273139. The reversal of 271785273138 is 831372587172.

271785273138 is a `hidden beast` number, since 271 + 7 + 8 + 52 + 7 + 313 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (271785273131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4871413 + ... + 4926888.

It is an arithmetic number, because the mean of its divisors is an integer number (12992548452).

Almost surely, 2^271785273138 is an apocalyptic number.

271785273138 is an abundant number, since it is smaller than the sum of its proper divisors (351857052558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

271785273138 is a wasteful number, since it uses less digits than its factorization.

271785273138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9798399 (or 9798396 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 54.

The spelling of 271785273138 in words is "two hundred seventy-one billion, seven hundred eighty-five million, two hundred seventy-three thousand, one hundred thirty-eight".