6544049590 has 16 divisors (see below), whose sum is σ = 12685388688. Its totient is φ = 2416264416.

The previous prime is 6544049569. The next prime is 6544049591. The reversal of 6544049590 is 959404456.

It is a self number, because there is not a number n which added to its sum of digits gives 6544049590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6544049591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25169292 + ... + 25169551.

It is an arithmetic number, because the mean of its divisors is an integer number (792836793).

Almost surely, 2^6544049590 is an apocalyptic number.

6544049590 is a deficient number, since it is larger than the sum of its proper divisors (6141339098).

6544049590 is a wasteful number, since it uses less digits than its factorization.

6544049590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50338863.

The product of its (nonzero) digits is 777600, while the sum is 46.

The square root of 6544049590 is about 80895.3001725069. The cubic root of 6544049590 is about 1870.4618751016.

The spelling of 6544049590 in words is "six billion, five hundred forty-four million, forty-nine thousand, five hundred ninety".