80439203486893 has 2 divisors, whose sum is σ = 80439203486894. Its totient is φ = 80439203486892.

The previous prime is 80439203486881. The next prime is 80439203486959. The reversal of 80439203486893 is 39868430293408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41111730656649 + 39327472830244 = 6411843^2 + 6271162^2 .

It is a cyclic number.

It is not a de Polignac number, because 80439203486893 - 2⁹ = 80439203486381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80439203486693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40219601743446 + 40219601743447.

It is an arithmetic number, because the mean of its divisors is an integer number (40219601743447).

Almost surely, 2^{80439203486893} is an apocalyptic number.

It is an amenable number.

80439203486893 is a deficient number, since it is larger than the sum of its proper divisors (1).

80439203486893 is an equidigital number, since it uses as much as digits as its factorization.

80439203486893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214990848, while the sum is 67.

The spelling of 80439203486893 in words is "eighty trillion, four hundred thirty-nine billion, two hundred three million, four hundred eighty-six thousand, eight hundred ninety-three".