71732857271 has 2 divisors, whose sum is σ = 71732857272. Its totient is φ = 71732857270.

The previous prime is 71732857213. The next prime is 71732857283. The reversal of 71732857271 is 17275823717.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71732857271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71732857291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35866428635 + 35866428636.

It is an arithmetic number, because the mean of its divisors is an integer number (35866428636).

Almost surely, 2^71732857271 is an apocalyptic number.

71732857271 is a deficient number, since it is larger than the sum of its proper divisors (1).

71732857271 is an equidigital number, since it uses as much as digits as its factorization.

71732857271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152480, while the sum is 50.

The spelling of 71732857271 in words is "seventy-one billion, seven hundred thirty-two million, eight hundred fifty-seven thousand, two hundred seventy-one".