68850757 has 2 divisors, whose sum is σ = 68850758. Its totient is φ = 68850756.

The previous prime is 68850709. The next prime is 68850779. The reversal of 68850757 is 75705886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67092481 + 1758276 = 8191^2 + 1326^2 .

It is a cyclic number.

It is not a de Polignac number, because 68850757 - 2¹⁹ = 68326469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68850797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34425378 + 34425379.

It is an arithmetic number, because the mean of its divisors is an integer number (34425379).

Almost surely, 2^68850757 is an apocalyptic number.

It is an amenable number.

68850757 is a deficient number, since it is larger than the sum of its proper divisors (1).

68850757 is an equidigital number, since it uses as much as digits as its factorization.

68850757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 68850757 is about 8297.6356270928. The cubic root of 68850757 is about 409.8606645311.

The spelling of 68850757 in words is "sixty-eight million, eight hundred fifty thousand, seven hundred fifty-seven".