71825434349 has 2 divisors, whose sum is σ = 71825434350. Its totient is φ = 71825434348.

The previous prime is 71825434321. The next prime is 71825434423. The reversal of 71825434349 is 94343452817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68981345449 + 2844088900 = 262643^2 + 53330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71825434349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71825434297 and 71825434306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71825434309) 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, 35912717174 + 35912717175.

It is an arithmetic number, because the mean of its divisors is an integer number (35912717175).

Almost surely, 2^71825434349 is an apocalyptic number.

It is an amenable number.

71825434349 is a deficient number, since it is larger than the sum of its proper divisors (1).

71825434349 is an equidigital number, since it uses as much as digits as its factorization.

71825434349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 50.

The spelling of 71825434349 in words is "seventy-one billion, eight hundred twenty-five million, four hundred thirty-four thousand, three hundred forty-nine".