6531146886 has 16 divisors (see below), whose sum is σ = 14249775168. Its totient is φ = 1979135400.

The previous prime is 6531146803. The next prime is 6531146899. The reversal of 6531146886 is 6886411356.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 49478320 + ... + 49478451.

It is an arithmetic number, because the mean of its divisors is an integer number (890610948).

Almost surely, 2^6531146886 is an apocalyptic number.

6531146886 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6531146886 is an abundant number, since it is smaller than the sum of its proper divisors (7718628282).

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

6531146886 is a wasteful number, since it uses less digits than its factorization.

6531146886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98956787.

The product of its digits is 829440, while the sum is 48.

The square root of 6531146886 is about 80815.5114195289. The cubic root of 6531146886 is about 1869.2317553101.

The spelling of 6531146886 in words is "six billion, five hundred thirty-one million, one hundred forty-six thousand, eight hundred eighty-six".