489315925665 has 96 divisors (see below), whose sum is σ = 1036295410176. Its totient is φ = 208484997120.

The previous prime is 489315925621. The next prime is 489315925691. The reversal of 489315925665 is 566529513984.

489315925665 is a `hidden beast` number, since 4 + 8 + 9 + 31 + 592 + 5 + 6 + 6 + 5 = 666.

489315925665 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 489315925665 - 2¹⁰ = 489315924641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 107995 + ... + 995135.

It is an arithmetic number, because the mean of its divisors is an integer number (10794743856).

Almost surely, 2^489315925665 is an apocalyptic number.

489315925665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

489315925665 is an abundant number, since it is smaller than the sum of its proper divisors (546979484511).

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

489315925665 is a wasteful number, since it uses less digits than its factorization.

489315925665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887279 (or 887276 counting only the distinct ones).

The product of its digits is 69984000, while the sum is 63.

The spelling of 489315925665 in words is "four hundred eighty-nine billion, three hundred fifteen million, nine hundred twenty-five thousand, six hundred sixty-five".