1288244763285 has 16 divisors (see below), whose sum is σ = 2061206139456. Its totient is φ = 687059034368.

The previous prime is 1288244763283. The next prime is 1288244763313. The reversal of 1288244763285 is 5823674428821.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1288244763285 - 2¹ = 1288244763283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288244763283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3225757 + ... + 3603053.

It is an arithmetic number, because the mean of its divisors is an integer number (128825383716).

Almost surely, 2^{1288244763285} is an apocalyptic number.

1288244763285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1288244763285 is a deficient number, since it is larger than the sum of its proper divisors (772961376171).

1288244763285 is a wasteful number, since it uses less digits than its factorization.

1288244763285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604932.

The product of its digits is 41287680, while the sum is 60.

The spelling of 1288244763285 in words is "one trillion, two hundred eighty-eight billion, two hundred forty-four million, seven hundred sixty-three thousand, two hundred eighty-five".