271434388549 has 4 divisors (see below), whose sum is σ = 271435900780. Its totient is φ = 271432876320.

The previous prime is 271434388513. The next prime is 271434388559. The reversal of 271434388549 is 945883434172.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264756557025 + 6677831524 = 514545^2 + 81718^2 .

It is a cyclic number.

It is not a de Polignac number, because 271434388549 - 2¹⁷ = 271434257477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 271434388493 and 271434388502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271434388559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443904 + ... + 860185.

It is an arithmetic number, because the mean of its divisors is an integer number (67858975195).

Almost surely, 2^271434388549 is an apocalyptic number.

It is an amenable number.

271434388549 is a deficient number, since it is larger than the sum of its proper divisors (1512231).

271434388549 is a wasteful number, since it uses less digits than its factorization.

271434388549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512230.

The product of its digits is 23224320, while the sum is 58.

The spelling of 271434388549 in words is "two hundred seventy-one billion, four hundred thirty-four million, three hundred eighty-eight thousand, five hundred forty-nine".