287228424209 has 8 divisors (see below), whose sum is σ = 306717784320. Its totient is φ = 268378059600.

The previous prime is 287228424193. The next prime is 287228424229. The reversal of 287228424209 is 902424822782.

It is a happy number.

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 287228424209 - 2⁴ = 287228424193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (287228424229) 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, 159747947 + ... + 159749744.

It is an arithmetic number, because the mean of its divisors is an integer number (38339723040).

Almost surely, 2^287228424209 is an apocalyptic number.

287228424209 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

287228424209 is a deficient number, since it is larger than the sum of its proper divisors (19489360111).

287228424209 is a wasteful number, since it uses less digits than its factorization.

287228424209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319497751.

The product of its (nonzero) digits is 2064384, while the sum is 50.

The spelling of 287228424209 in words is "two hundred eighty-seven billion, two hundred twenty-eight million, four hundred twenty-four thousand, two hundred nine".