285063890668 has 24 divisors (see below), whose sum is σ = 503650224000. Its totient is φ = 141164926848.

The previous prime is 285063890633. The next prime is 285063890689. The reversal of 285063890668 is 866098360582.

It is a super-2 number, since 2×285063890668² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 909696 + ... + 1182232.

It is an arithmetic number, because the mean of its divisors is an integer number (20985426000).

Almost surely, 2^285063890668 is an apocalyptic number.

It is an amenable number.

285063890668 is a deficient number, since it is larger than the sum of its proper divisors (218586333332).

285063890668 is a wasteful number, since it uses less digits than its factorization.

285063890668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275049 (or 275047 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 285063890668 in words is "two hundred eighty-five billion, sixty-three million, eight hundred ninety thousand, six hundred sixty-eight".