6547758646 has 32 divisors (see below), whose sum is σ = 11607069600. Its totient is φ = 2747291040.

The previous prime is 6547758629. The next prime is 6547758667. The reversal of 6547758646 is 6468577456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19401 + ... + 116068.

It is an arithmetic number, because the mean of its divisors is an integer number (362720925).

Almost surely, 2^6547758646 is an apocalyptic number.

6547758646 is a deficient number, since it is larger than the sum of its proper divisors (5059310954).

6547758646 is a wasteful number, since it uses less digits than its factorization.

6547758646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135521 (or 135495 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 58.

The square root of 6547758646 is about 80918.2219651421. The cubic root of 6547758646 is about 1870.8151903510.

The spelling of 6547758646 in words is "six billion, five hundred forty-seven million, seven hundred fifty-eight thousand, six hundred forty-six".