71152586861 has 2 divisors, whose sum is σ = 71152586862. Its totient is φ = 71152586860.

The previous prime is 71152586839. The next prime is 71152586899. The reversal of 71152586861 is 16868525117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39461822500 + 31690764361 = 198650^2 + 178019^2 .

It is a cyclic number.

It is not a de Polignac number, because 71152586861 - 2¹⁸ = 71152324717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71152586801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35576293430 + 35576293431.

It is an arithmetic number, because the mean of its divisors is an integer number (35576293431).

Almost surely, 2^71152586861 is an apocalyptic number.

It is an amenable number.

71152586861 is a deficient number, since it is larger than the sum of its proper divisors (1).

71152586861 is an equidigital number, since it uses as much as digits as its factorization.

71152586861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 50.

The spelling of 71152586861 in words is "seventy-one billion, one hundred fifty-two million, five hundred eighty-six thousand, eight hundred sixty-one".