271990411729 has 3 divisors (see below), whose sum is σ = 271990933257. Its totient is φ = 271989890202.

The previous prime is 271990411709. The next prime is 271990411741. The reversal of 271990411729 is 927114099172.

It is a happy number.

The square root of 271990411729 is 521527.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 271990411729 - 2⁷ = 271990411601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (271990411709) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 260764 + ... + 782290.

It is an arithmetic number, because the mean of its divisors is an integer number (90663644419).

Almost surely, 2^271990411729 is an apocalyptic number.

271990411729 is the 521527-th square number.

271990411729 is the 260764-th centered octagonal number.

It is an amenable number.

271990411729 is a deficient number, since it is larger than the sum of its proper divisors (521528).

271990411729 is an frugal number, since it uses more digits than its factorization.

271990411729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043054 (or 521527 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 52.

The spelling of 271990411729 in words is "two hundred seventy-one billion, nine hundred ninety million, four hundred eleven thousand, seven hundred twenty-nine".