285207266304 has 99 divisors (see below), whose sum is σ = 823677855663. Its totient is φ = 95051999232.

The previous prime is 285207266287. The next prime is 285207266341. The reversal of 285207266304 is 403662702582.

The square root of 285207266304 is 534048.

It is a perfect power (a square), and thus also a powerful number.

285207266304 is a `hidden beast` number, since 2 + 8 + 5 + 2 + 0 + 7 + 2 + 6 + 630 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 285207266304.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51265827 + ... + 51271389.

Almost surely, 2^285207266304 is an apocalyptic number.

285207266304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

285207266304 is the 534048-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285207266304

285207266304 is an abundant number, since it is smaller than the sum of its proper divisors (538470589359).

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

285207266304 is an frugal number, since it uses more digits than its factorization.

285207266304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11152 (or 5568 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

Adding to 285207266304 its reverse (403662702582), we get a palindrome (688869968886).

The spelling of 285207266304 in words is "two hundred eighty-five billion, two hundred seven million, two hundred sixty-six thousand, three hundred four".