71751297271 has 2 divisors, whose sum is σ = 71751297272. Its totient is φ = 71751297270.

The previous prime is 71751297269. The next prime is 71751297313. The reversal of 71751297271 is 17279215717.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71751297271 - 2¹ = 71751297269 is a prime.

Together with 71751297269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71751297071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35875648635 + 35875648636.

It is an arithmetic number, because the mean of its divisors is an integer number (35875648636).

Almost surely, 2^71751297271 is an apocalyptic number.

71751297271 is a deficient number, since it is larger than the sum of its proper divisors (1).

71751297271 is an equidigital number, since it uses as much as digits as its factorization.

71751297271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432180, while the sum is 49.

It can be divided in two parts, 7175129 and 7271, that added together give a square (7182400 = 2680²).

The spelling of 71751297271 in words is "seventy-one billion, seven hundred fifty-one million, two hundred ninety-seven thousand, two hundred seventy-one".