285223108884521 has 8 divisors (see below), whose sum is σ = 286858205592480. Its totient is φ = 283588475193792.

The previous prime is 285223108884499. The next prime is 285223108884583. The reversal of 285223108884521 is 125488801322582.

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 285223108884521 - 2¹⁸ = 285223108622377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285223108884421) 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, 114518720 + ... + 116982833.

It is an arithmetic number, because the mean of its divisors is an integer number (35857275699060).

Almost surely, 2^{285223108884521} is an apocalyptic number.

It is an amenable number.

285223108884521 is a deficient number, since it is larger than the sum of its proper divisors (1635096707959).

285223108884521 is a wasteful number, since it uses less digits than its factorization.

285223108884521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231508615.

The product of its (nonzero) digits is 19660800, while the sum is 59.

The spelling of 285223108884521 in words is "two hundred eighty-five trillion, two hundred twenty-three billion, one hundred eight million, eight hundred eighty-four thousand, five hundred twenty-one".