71007734321 has 2 divisors, whose sum is σ = 71007734322. Its totient is φ = 71007734320.

The previous prime is 71007734311. The next prime is 71007734351. The reversal of 71007734321 is 12343770017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48428164096 + 22579570225 = 220064^2 + 150265^2 .

It is a cyclic number.

It is not a de Polignac number, because 71007734321 - 2³⁰ = 69933992497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (71007734311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35503867160 + 35503867161.

It is an arithmetic number, because the mean of its divisors is an integer number (35503867161).

Almost surely, 2^71007734321 is an apocalyptic number.

It is an amenable number.

71007734321 is a deficient number, since it is larger than the sum of its proper divisors (1).

71007734321 is an equidigital number, since it uses as much as digits as its factorization.

71007734321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 35.

The spelling of 71007734321 in words is "seventy-one billion, seven million, seven hundred thirty-four thousand, three hundred twenty-one".