288055640909 has 2 divisors, whose sum is σ = 288055640910. Its totient is φ = 288055640908.

The previous prime is 288055640893. The next prime is 288055640963. The reversal of 288055640909 is 909046550882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264424265284 + 23631375625 = 514222^2 + 153725^2 .

It is a cyclic number.

It is not a de Polignac number, because 288055640909 - 2⁴ = 288055640893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288055660909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144027820454 + 144027820455.

It is an arithmetic number, because the mean of its divisors is an integer number (144027820455).

Almost surely, 2^288055640909 is an apocalyptic number.

It is an amenable number.

288055640909 is a deficient number, since it is larger than the sum of its proper divisors (1).

288055640909 is an equidigital number, since it uses as much as digits as its factorization.

288055640909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 288055640909 in words is "two hundred eighty-eight billion, fifty-five million, six hundred forty thousand, nine hundred nine".