68821803767803 has 2 divisors, whose sum is σ = 68821803767804. Its totient is φ = 68821803767802.

The previous prime is 68821803767749. The next prime is 68821803767839. The reversal of 68821803767803 is 30876730812886.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68821803767803 is a prime.

It is not a weakly prime, because it can be changed into another prime (68821803767503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34410901883901 + 34410901883902.

It is an arithmetic number, because the mean of its divisors is an integer number (34410901883902).

Almost surely, 2^{68821803767803} is an apocalyptic number.

68821803767803 is a deficient number, since it is larger than the sum of its proper divisors (1).

68821803767803 is an equidigital number, since it uses as much as digits as its factorization.

68821803767803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 130056192, while the sum is 67.

The spelling of 68821803767803 in words is "sixty-eight trillion, eight hundred twenty-one billion, eight hundred three million, seven hundred sixty-seven thousand, eight hundred three".