68739768993037 has 2 divisors, whose sum is σ = 68739768993038. Its totient is φ = 68739768993036.

The previous prime is 68739768992977. The next prime is 68739768993047. The reversal of 68739768993037 is 73039986793786.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64376407827081 + 4363361165956 = 8023491^2 + 2088866^2 .

It is a cyclic number.

It is not a de Polignac number, because 68739768993037 - 2¹¹ = 68739768990989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68739768993047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34369884496518 + 34369884496519.

It is an arithmetic number, because the mean of its divisors is an integer number (34369884496519).

Almost surely, 2^{68739768993037} is an apocalyptic number.

It is an amenable number.

68739768993037 is a deficient number, since it is larger than the sum of its proper divisors (1).

68739768993037 is an equidigital number, since it uses as much as digits as its factorization.

68739768993037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15554923776, while the sum is 85.

The spelling of 68739768993037 in words is "sixty-eight trillion, seven hundred thirty-nine billion, seven hundred sixty-eight million, nine hundred ninety-three thousand, thirty-seven".