78043596089 has 2 divisors, whose sum is σ = 78043596090. Its totient is φ = 78043596088.

The previous prime is 78043596083. The next prime is 78043596119. The reversal of 78043596089 is 98069534087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74360926864 + 3682669225 = 272692^2 + 60685^2 .

It is a cyclic number.

It is not a de Polignac number, because 78043596089 - 2¹⁶ = 78043530553 is a prime.

It is a super-3 number, since 3×78043596089³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (78043596083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39021798044 + 39021798045.

It is an arithmetic number, because the mean of its divisors is an integer number (39021798045).

Almost surely, 2^78043596089 is an apocalyptic number.

It is an amenable number.

78043596089 is a deficient number, since it is larger than the sum of its proper divisors (1).

78043596089 is an equidigital number, since it uses as much as digits as its factorization.

78043596089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 78043596089 in words is "seventy-eight billion, forty-three million, five hundred ninety-six thousand, eighty-nine".