489665113638 has 32 divisors (see below), whose sum is σ = 1038300651360. Its totient is φ = 153418536960.

The previous prime is 489665113573. The next prime is 489665113703. The reversal of 489665113638 is 836311566984.

It is an interprime number because it is at equal distance from previous prime (489665113573) and next prime (489665113703).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3076543 + ... + 3231786.

It is an arithmetic number, because the mean of its divisors is an integer number (32446895355).

Almost surely, 2^489665113638 is an apocalyptic number.

489665113638 is an abundant number, since it is smaller than the sum of its proper divisors (548635537722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489665113638 is a wasteful number, since it uses less digits than its factorization.

489665113638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309112.

The product of its digits is 22394880, while the sum is 60.

The spelling of 489665113638 in words is "four hundred eighty-nine billion, six hundred sixty-five million, one hundred thirteen thousand, six hundred thirty-eight".