6543254605 has 8 divisors (see below), whose sum is σ = 7895772000. Its totient is φ = 5205359376.

The previous prime is 6543254591. The next prime is 6543254623. The reversal of 6543254605 is 5064523456.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6543254605 - 2¹⁵ = 6543221837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3654555 + ... + 3656344.

It is an arithmetic number, because the mean of its divisors is an integer number (986971500).

Almost surely, 2^6543254605 is an apocalyptic number.

It is an amenable number.

6543254605 is a deficient number, since it is larger than the sum of its proper divisors (1352517395).

6543254605 is a wasteful number, since it uses less digits than its factorization.

6543254605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311083.

The product of its (nonzero) digits is 432000, while the sum is 40.

The square root of 6543254605 is about 80890.3863570944. The cubic root of 6543254605 is about 1870.3861294779.

The spelling of 6543254605 in words is "six billion, five hundred forty-three million, two hundred fifty-four thousand, six hundred five".