288120639091 has 2 divisors, whose sum is σ = 288120639092. Its totient is φ = 288120639090.

The previous prime is 288120639077. The next prime is 288120639109. The reversal of 288120639091 is 190936021882.

Together with next prime (288120639109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 288120639091 - 2¹⁹ = 288120114803 is a prime.

It is not a weakly prime, because it can be changed into another prime (288120639491) 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, 144060319545 + 144060319546.

It is an arithmetic number, because the mean of its divisors is an integer number (144060319546).

Almost surely, 2^288120639091 is an apocalyptic number.

288120639091 is a deficient number, since it is larger than the sum of its proper divisors (1).

288120639091 is an equidigital number, since it uses as much as digits as its factorization.

288120639091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 49.

The spelling of 288120639091 in words is "two hundred eighty-eight billion, one hundred twenty million, six hundred thirty-nine thousand, ninety-one".