6541989327 has 8 divisors (see below), whose sum is σ = 9691836080. Its totient is φ = 4361326200.

The previous prime is 6541989263. The next prime is 6541989353. The reversal of 6541989327 is 7239891456.

6541989327 is a `hidden beast` number, since 6 + 541 + 9 + 8 + 93 + 2 + 7 = 666.

It is not a de Polignac number, because 6541989327 - 2⁶ = 6541989263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541982327) 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, 121147924 + ... + 121147977.

It is an arithmetic number, because the mean of its divisors is an integer number (1211479510).

Almost surely, 2^6541989327 is an apocalyptic number.

6541989327 is a deficient number, since it is larger than the sum of its proper divisors (3149846753).

6541989327 is a wasteful number, since it uses less digits than its factorization.

6541989327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242295910 (or 242295904 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 6541989327 is about 80882.5650372192. The cubic root of 6541989327 is about 1870.2655620069.

The spelling of 6541989327 in words is "six billion, five hundred forty-one million, nine hundred eighty-nine thousand, three hundred twenty-seven".