71886233249 has 2 divisors, whose sum is σ = 71886233250. Its totient is φ = 71886233248.

The previous prime is 71886233239. The next prime is 71886233273. The reversal of 71886233249 is 94233268817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54072526225 + 17813707024 = 232535^2 + 133468^2 .

It is a cyclic number.

It is not a de Polignac number, because 71886233249 - 2³⁶ = 3166756513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71886233249.

It is not a weakly prime, because it can be changed into another prime (71886233239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35943116624 + 35943116625.

It is an arithmetic number, because the mean of its divisors is an integer number (35943116625).

Almost surely, 2^71886233249 is an apocalyptic number.

It is an amenable number.

71886233249 is a deficient number, since it is larger than the sum of its proper divisors (1).

71886233249 is an equidigital number, since it uses as much as digits as its factorization.

71886233249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 53.

The spelling of 71886233249 in words is "seventy-one billion, eight hundred eighty-six million, two hundred thirty-three thousand, two hundred forty-nine".