271742240898 has 18 divisors (see below), whose sum is σ = 588779647209. Its totient is φ = 90580009752.

The previous prime is 271742240827. The next prime is 271742240899. The reversal of 271742240898 is 898042247172.

271742240898 is a `hidden beast` number, since 271 + 7 + 42 + 240 + 8 + 98 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 224565097689 + 47177143209 = 473883^2 + 217203^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=368607.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (271742240899) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2150208 + ... + 2273076.

Almost surely, 2^271742240898 is an apocalyptic number.

271742240898 is an abundant number, since it is smaller than the sum of its proper divisors (317037406311).

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

271742240898 is an frugal number, since it uses more digits than its factorization.

271742240898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245746 (or 122874 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 271742240898 in words is "two hundred seventy-one billion, seven hundred forty-two million, two hundred forty thousand, eight hundred ninety-eight".