285785627387 has 16 divisors (see below), whose sum is σ = 313027303680. Its totient is φ = 259296311712.

The previous prime is 285785627377. The next prime is 285785627423. The reversal of 285785627387 is 783726587582.

It is a cyclic number.

It is not a de Polignac number, because 285785627387 - 2¹⁴ = 285785611003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285785627377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7038458 + ... + 7078944.

It is an arithmetic number, because the mean of its divisors is an integer number (19564206480).

Almost surely, 2^285785627387 is an apocalyptic number.

285785627387 is a deficient number, since it is larger than the sum of its proper divisors (27241676293).

285785627387 is a wasteful number, since it uses less digits than its factorization.

285785627387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49762.

The product of its digits is 316108800, while the sum is 68.

The spelling of 285785627387 in words is "two hundred eighty-five billion, seven hundred eighty-five million, six hundred twenty-seven thousand, three hundred eighty-seven".