6549443862 has 64 divisors (see below), whose sum is σ = 14224896000. Its totient is φ = 1998374400.

The previous prime is 6549443819. The next prime is 6549443863. The reversal of 6549443862 is 2683449456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6549443863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7433662 + ... + 7434542.

It is an arithmetic number, because the mean of its divisors is an integer number (222264000).

Almost surely, 2^6549443862 is an apocalyptic number.

6549443862 is an abundant number, since it is smaller than the sum of its proper divisors (7675452138).

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

6549443862 is a wasteful number, since it uses less digits than its factorization.

6549443862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589.

The product of its digits is 4976640, while the sum is 51.

The square root of 6549443862 is about 80928.6343762206. The cubic root of 6549443862 is about 1870.9756756623.

The spelling of 6549443862 in words is "six billion, five hundred forty-nine million, four hundred forty-three thousand, eight hundred sixty-two".