285228470899 has 8 divisors (see below), whose sum is σ = 302090177808. Its totient is φ = 268376048640.

The previous prime is 285228470887. The next prime is 285228470909. The reversal of 285228470899 is 998074822582.

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 285228470899 - 2¹¹ = 285228468851 is a prime.

It is a super-2 number, since 2×285228470899² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 285228470899.

It is not an unprimeable number, because it can be changed into a prime (285228470809) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2257857 + ... + 2380834.

It is an arithmetic number, because the mean of its divisors is an integer number (37761272226).

Almost surely, 2^285228470899 is an apocalyptic number.

285228470899 is a deficient number, since it is larger than the sum of its proper divisors (16861706909).

285228470899 is a wasteful number, since it uses less digits than its factorization.

285228470899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642325.

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 285228470899 in words is "two hundred eighty-five billion, two hundred twenty-eight million, four hundred seventy thousand, eight hundred ninety-nine".