271447661472 has 96 divisors (see below), whose sum is σ = 767816703360. Its totient is φ = 83472829440.

The previous prime is 271447661393. The next prime is 271447661477. The reversal of 271447661472 is 274166744172.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (271447661477) 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, 2069197 + ... + 2196467.

It is an arithmetic number, because the mean of its divisors is an integer number (7998090660).

Almost surely, 2^271447661472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 271447661472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383908351680).

271447661472 is an abundant number, since it is smaller than the sum of its proper divisors (496369041888).

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

271447661472 is a wasteful number, since it uses less digits than its factorization.

271447661472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129006 (or 128998 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 51.

The spelling of 271447661472 in words is "two hundred seventy-one billion, four hundred forty-seven million, six hundred sixty-one thousand, four hundred seventy-two".