6509858604489 has 24 divisors (see below), whose sum is σ = 9629979188544. Its totient is φ = 4236416100000.

The previous prime is 6509858604427. The next prime is 6509858604511. The reversal of 6509858604489 is 9844068589056.

6509858604489 is a `hidden beast` number, since 6 + 5 + 0 + 9 + 8 + 5 + 8 + 604 + 4 + 8 + 9 = 666.

It is not a de Polignac number, because 6509858604489 - 2¹¹ = 6509858602441 is a prime.

It is a super-2 number, since 2×6509858604489² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6509858600489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50368987 + ... + 50498064.

It is an arithmetic number, because the mean of its divisors is an integer number (401249132856).

Almost surely, 2^{6509858604489} is an apocalyptic number.

It is an amenable number.

6509858604489 is a deficient number, since it is larger than the sum of its proper divisors (3120120584055).

6509858604489 is a wasteful number, since it uses less digits than its factorization.

6509858604489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100867229 (or 100867226 counting only the distinct ones).

The product of its (nonzero) digits is 597196800, while the sum is 72.

The spelling of 6509858604489 in words is "six trillion, five hundred nine billion, eight hundred fifty-eight million, six hundred four thousand, four hundred eighty-nine".