71768586251 has 2 divisors, whose sum is σ = 71768586252. Its totient is φ = 71768586250.

The previous prime is 71768586233. The next prime is 71768586269. The reversal of 71768586251 is 15268586717.

It is a balanced prime because it is at equal distance from previous prime (71768586233) and next prime (71768586269).

It is an emirp because it is prime and its reverse (15268586717) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71768586251 - 2¹⁰ = 71768585227 is a prime.

It is not a weakly prime, because it can be changed into another prime (71768586451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35884293125 + 35884293126.

It is an arithmetic number, because the mean of its divisors is an integer number (35884293126).

Almost surely, 2^71768586251 is an apocalyptic number.

71768586251 is a deficient number, since it is larger than the sum of its proper divisors (1).

71768586251 is an equidigital number, since it uses as much as digits as its factorization.

71768586251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5644800, while the sum is 56.

The spelling of 71768586251 in words is "seventy-one billion, seven hundred sixty-eight million, five hundred eighty-six thousand, two hundred fifty-one".