75664711249 has 2 divisors, whose sum is σ = 75664711250. Its totient is φ = 75664711248.

The previous prime is 75664711211. The next prime is 75664711261. The reversal of 75664711249 is 94211746657.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72490177600 + 3174533649 = 269240^2 + 56343^2 .

It is a cyclic number.

It is not a de Polignac number, because 75664711249 - 2¹³ = 75664703057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75664711196 and 75664711205.

It is not a weakly prime, because it can be changed into another prime (75664715249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37832355624 + 37832355625.

It is an arithmetic number, because the mean of its divisors is an integer number (37832355625).

Almost surely, 2^75664711249 is an apocalyptic number.

It is an amenable number.

75664711249 is a deficient number, since it is larger than the sum of its proper divisors (1).

75664711249 is an equidigital number, since it uses as much as digits as its factorization.

75664711249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 52.

The spelling of 75664711249 in words is "seventy-five billion, six hundred sixty-four million, seven hundred eleven thousand, two hundred forty-nine".