489215346521 has 8 divisors (see below), whose sum is σ = 534477792384. Its totient is φ = 444084287920.

The previous prime is 489215346509. The next prime is 489215346523. The reversal of 489215346521 is 125643512984.

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 489215346521 - 2¹⁸ = 489215084377 is a prime.

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 489215346521.

It is not an unprimeable number, because it can be changed into a prime (489215346523) 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, 32839025 + ... + 32853918.

It is an arithmetic number, because the mean of its divisors is an integer number (66809724048).

Almost surely, 2^489215346521 is an apocalyptic number.

It is an amenable number.

489215346521 is a deficient number, since it is larger than the sum of its proper divisors (45262445863).

489215346521 is a wasteful number, since it uses less digits than its factorization.

489215346521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65693631.

The product of its digits is 2073600, while the sum is 50.

The spelling of 489215346521 in words is "four hundred eighty-nine billion, two hundred fifteen million, three hundred forty-six thousand, five hundred twenty-one".