80000068868861 has 2 divisors, whose sum is σ = 80000068868862. Its totient is φ = 80000068868860.

The previous prime is 80000068868809. The next prime is 80000068868893. The reversal of 80000068868861 is 16886886000008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70358460120025 + 9641608748836 = 8387995^2 + 3105094^2 .

It is a cyclic number.

It is not a de Polignac number, because 80000068868861 - 2¹⁴ = 80000068852477 is a prime.

It is a super-3 number, since 3×80000068868861³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 80000068868861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80000068868261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40000034434430 + 40000034434431.

It is an arithmetic number, because the mean of its divisors is an integer number (40000034434431).

Almost surely, 2^{80000068868861} is an apocalyptic number.

It is an amenable number.

80000068868861 is a deficient number, since it is larger than the sum of its proper divisors (1).

80000068868861 is an equidigital number, since it uses as much as digits as its factorization.

80000068868861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7077888, while the sum is 59.

The spelling of 80000068868861 in words is "eighty trillion, sixty-eight million, eight hundred sixty-eight thousand, eight hundred sixty-one".