285455332368 has 180 divisors, whose sum is σ = 828064793244. Its totient is φ = 91794124800.

The previous prime is 285455332313. The next prime is 285455332447. The reversal of 285455332368 is 863233554582.

285455332368 is a `hidden beast` number, since 2 + 8 + 5 + 4 + 553 + 3 + 23 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53023351824 + 232431980544 = 230268^2 + 482112^2 .

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 46632348 + ... + 46638468.

Almost surely, 2^285455332368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285455332368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414032396622).

285455332368 is an abundant number, since it is smaller than the sum of its proper divisors (542609460876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285455332368 is a wasteful number, since it uses less digits than its factorization.

285455332368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6534 (or 6494 counting only the distinct ones).

The product of its digits is 20736000, while the sum is 54.

The spelling of 285455332368 in words is "two hundred eighty-five billion, four hundred fifty-five million, three hundred thirty-two thousand, three hundred sixty-eight".