285225287647 has 2 divisors, whose sum is σ = 285225287648. Its totient is φ = 285225287646.

The previous prime is 285225287629. The next prime is 285225287681. The reversal of 285225287647 is 746782522582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 285225287647 - 2¹¹ = 285225285599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285225287591 and 285225287600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285225285647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142612643823 + 142612643824.

It is an arithmetic number, because the mean of its divisors is an integer number (142612643824).

Almost surely, 2^285225287647 is an apocalyptic number.

285225287647 is a deficient number, since it is larger than the sum of its proper divisors (1).

285225287647 is an equidigital number, since it uses as much as digits as its factorization.

285225287647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30105600, while the sum is 58.

The spelling of 285225287647 in words is "two hundred eighty-five billion, two hundred twenty-five million, two hundred eighty-seven thousand, six hundred forty-seven".