71316054757 has 2 divisors, whose sum is σ = 71316054758. Its totient is φ = 71316054756.

The previous prime is 71316054739. The next prime is 71316054779. The reversal of 71316054757 is 75745061317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64881768961 + 6434285796 = 254719^2 + 80214^2 .

It is a cyclic number.

It is not a de Polignac number, because 71316054757 - 2³⁵ = 36956316389 is a prime.

It is a super-2 number, since 2×71316054757² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71316054727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35658027378 + 35658027379.

It is an arithmetic number, because the mean of its divisors is an integer number (35658027379).

Almost surely, 2^71316054757 is an apocalyptic number.

It is an amenable number.

71316054757 is a deficient number, since it is larger than the sum of its proper divisors (1).

71316054757 is an equidigital number, since it uses as much as digits as its factorization.

71316054757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 617400, while the sum is 46.

The spelling of 71316054757 in words is "seventy-one billion, three hundred sixteen million, fifty-four thousand, seven hundred fifty-seven".