271623549647 has 2 divisors, whose sum is σ = 271623549648. Its totient is φ = 271623549646.

The previous prime is 271623549583. The next prime is 271623549649. The reversal of 271623549647 is 746945326172.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 271623549647 - 2⁶ = 271623549583 is a prime.

Together with 271623549649, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 271623549592 and 271623549601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271623549649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135811774823 + 135811774824.

It is an arithmetic number, because the mean of its divisors is an integer number (135811774824).

Almost surely, 2^271623549647 is an apocalyptic number.

271623549647 is a deficient number, since it is larger than the sum of its proper divisors (1).

271623549647 is an equidigital number, since it uses as much as digits as its factorization.

271623549647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 56.

The spelling of 271623549647 in words is "two hundred seventy-one billion, six hundred twenty-three million, five hundred forty-nine thousand, six hundred forty-seven".