71361368497 has 2 divisors, whose sum is σ = 71361368498. Its totient is φ = 71361368496.

The previous prime is 71361368473. The next prime is 71361368521. The reversal of 71361368497 is 79486316317.

It is a balanced prime because it is at equal distance from previous prime (71361368473) and next prime (71361368521).

It can be written as a sum of positive squares in only one way, i.e., 53708526001 + 17652842496 = 231751^2 + 132864^2 .

It is a cyclic number.

It is not a de Polignac number, because 71361368497 - 2³⁵ = 37001630129 is a prime.

It is not a weakly prime, because it can be changed into another prime (71361365497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35680684248 + 35680684249.

It is an arithmetic number, because the mean of its divisors is an integer number (35680684249).

Almost surely, 2^71361368497 is an apocalyptic number.

It is an amenable number.

71361368497 is a deficient number, since it is larger than the sum of its proper divisors (1).

71361368497 is an equidigital number, since it uses as much as digits as its factorization.

71361368497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 55.

The spelling of 71361368497 in words is "seventy-one billion, three hundred sixty-one million, three hundred sixty-eight thousand, four hundred ninety-seven".