68745219029 has 2 divisors, whose sum is σ = 68745219030. Its totient is φ = 68745219028.

The previous prime is 68745219007. The next prime is 68745219071. The reversal of 68745219029 is 92091254786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67821180625 + 924038404 = 260425^2 + 30398^2 .

It is a cyclic number.

It is not a de Polignac number, because 68745219029 - 2³⁶ = 25742293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68745219079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34372609514 + 34372609515.

It is an arithmetic number, because the mean of its divisors is an integer number (34372609515).

Almost surely, 2^68745219029 is an apocalyptic number.

It is an amenable number.

68745219029 is a deficient number, since it is larger than the sum of its proper divisors (1).

68745219029 is an equidigital number, since it uses as much as digits as its factorization.

68745219029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 68745219029 in words is "sixty-eight billion, seven hundred forty-five million, two hundred nineteen thousand, twenty-nine".