1285297282189 has 8 divisors (see below), whose sum is σ = 1306386385920. Its totient is φ = 1264208780400.

The previous prime is 1285297282183. The next prime is 1285297282261. The reversal of 1285297282189 is 9812827925821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1285297282189 - 2⁹ = 1285297281677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1285297282189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285297282183) 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 in 7 ways as a sum of consecutive naturals, for example, 6668604 + ... + 6858634.

It is an arithmetic number, because the mean of its divisors is an integer number (163298298240).

Almost surely, 2^{1285297282189} is an apocalyptic number.

It is an amenable number.

1285297282189 is a deficient number, since it is larger than the sum of its proper divisors (21089103731).

1285297282189 is a wasteful number, since it uses less digits than its factorization.

1285297282189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300971.

The product of its digits is 23224320, while the sum is 64.

The spelling of 1285297282189 in words is "one trillion, two hundred eighty-five billion, two hundred ninety-seven million, two hundred eighty-two thousand, one hundred eighty-nine".