6418554489 has 48 divisors (see below), whose sum is σ = 9535926400. Its totient is φ = 4159289088.

The previous prime is 6418554479. The next prime is 6418554497. The reversal of 6418554489 is 9844558146.

6418554489 is a `hidden beast` number, since 6 + 4 + 1 + 8 + 554 + 4 + 89 = 666.

It is not a de Polignac number, because 6418554489 - 2⁷ = 6418554361 is a prime.

It is a super-2 number, since 2×6418554489² = 82395683456524102242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6418554479) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14044749 + ... + 14045205.

Almost surely, 2^6418554489 is an apocalyptic number.

It is an amenable number.

6418554489 is a deficient number, since it is larger than the sum of its proper divisors (3117371911).

6418554489 is a wasteful number, since it uses less digits than its factorization.

6418554489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 811 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The square root of 6418554489 is about 80115.8816278021. The cubic root of 6418554489 is about 1858.4280171097.

The spelling of 6418554489 in words is "six billion, four hundred eighteen million, five hundred fifty-four thousand, four hundred eighty-nine".