6531980982 has 16 divisors (see below), whose sum is σ = 13088116272. Its totient is φ = 2173301280.

The previous prime is 6531980963. The next prime is 6531981011. The reversal of 6531980982 is 2890891356.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 1002913 + ... + 1009404.

It is an arithmetic number, because the mean of its divisors is an integer number (818007267).

Almost surely, 2^6531980982 is an apocalyptic number.

6531980982 is an abundant number, since it is smaller than the sum of its proper divisors (6556135290).

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

6531980982 is a wasteful number, since it uses less digits than its factorization.

6531980982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012863.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 6531980982 is about 80820.6717492499. The cubic root of 6531980982 is about 1869.3113254270.

The spelling of 6531980982 in words is "six billion, five hundred thirty-one million, nine hundred eighty thousand, nine hundred eighty-two".