80270489984389 has 2 divisors, whose sum is σ = 80270489984390. Its totient is φ = 80270489984388.

The previous prime is 80270489984371. The next prime is 80270489984507. The reversal of 80270489984389 is 98348998407208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40309064519364 + 39961425465025 = 6348942^2 + 6321505^2 .

It is a cyclic number.

It is not a de Polignac number, because 80270489984389 - 2⁷ = 80270489984261 is a prime.

It is a super-4 number, since 4×80270489984389⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80270489984359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40135244992194 + 40135244992195.

It is an arithmetic number, because the mean of its divisors is an integer number (40135244992195).

Almost surely, 2^{80270489984389} is an apocalyptic number.

It is an amenable number.

80270489984389 is a deficient number, since it is larger than the sum of its proper divisors (1).

80270489984389 is an equidigital number, since it uses as much as digits as its factorization.

80270489984389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2006581248, while the sum is 79.

The spelling of 80270489984389 in words is "eighty trillion, two hundred seventy billion, four hundred eighty-nine million, nine hundred eighty-four thousand, three hundred eighty-nine".