489052981885 has 32 divisors (see below), whose sum is σ = 635278865760. Its totient is φ = 359280230400.

The previous prime is 489052981873. The next prime is 489052981891. The reversal of 489052981885 is 588189250984.

It can be written as a sum of positive squares in 16 ways, for example, as 221187733636 + 267865248249 = 470306^2 + 517557^2 .

It is not a de Polignac number, because 489052981885 - 2¹¹ = 489052979837 is a prime.

It is a super-2 number, since 2×489052981885² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 489052981885.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15790515 + ... + 15821455.

It is an arithmetic number, because the mean of its divisors is an integer number (19852464555).

Almost surely, 2^489052981885 is an apocalyptic number.

It is an amenable number.

489052981885 is a deficient number, since it is larger than the sum of its proper divisors (146225883875).

489052981885 is a wasteful number, since it uses less digits than its factorization.

489052981885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32209.

The product of its (nonzero) digits is 66355200, while the sum is 67.

The spelling of 489052981885 in words is "four hundred eighty-nine billion, fifty-two million, nine hundred eighty-one thousand, eight hundred eighty-five".