285350407805 has 8 divisors (see below), whose sum is σ = 343401639000. Its totient is φ = 227626226496.

The previous prime is 285350407801. The next prime is 285350407807. The reversal of 285350407805 is 508704053582.

It can be written as a sum of positive squares in 4 ways, for example, as 1155864004 + 284194543801 = 33998^2 + 533099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 285350407805 - 2² = 285350407801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285350407805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285350407801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81760550 + ... + 81764039.

It is an arithmetic number, because the mean of its divisors is an integer number (42925204875).

Almost surely, 2^285350407805 is an apocalyptic number.

It is an amenable number.

285350407805 is a deficient number, since it is larger than the sum of its proper divisors (58051231195).

285350407805 is a wasteful number, since it uses less digits than its factorization.

285350407805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163524943.

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 285350407805 in words is "two hundred eighty-five billion, three hundred fifty million, four hundred seven thousand, eight hundred five".