131486805828 has 36 divisors (see below), whose sum is σ = 379850773120. Its totient is φ = 37567658736.

The previous prime is 131486805817. The next prime is 131486805851. The reversal of 131486805828 is 828508684131.

131486805828 is a `hidden beast` number, since 1 + 3 + 1 + 486 + 80 + 5 + 82 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260886268 + ... + 260886771.

Almost surely, 2^131486805828 is an apocalyptic number.

131486805828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131486805828 is an abundant number, since it is smaller than the sum of its proper divisors (248363967292).

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

131486805828 is a wasteful number, since it uses less digits than its factorization.

131486805828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521773056 (or 521773051 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 54.

The spelling of 131486805828 in words is "one hundred thirty-one billion, four hundred eighty-six million, eight hundred five thousand, eight hundred twenty-eight".