131858809848 has 128 divisors (see below), whose sum is σ = 380350080000. Its totient is φ = 42275431296.

The previous prime is 131858809837. The next prime is 131858809879. The reversal of 131858809848 is 848908858131.

131858809848 is a `hidden beast` number, since 1 + 3 + 1 + 8 + 588 + 0 + 9 + 8 + 48 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1607413 + ... + 1687451.

It is an arithmetic number, because the mean of its divisors is an integer number (2971485000).

Almost surely, 2^131858809848 is an apocalyptic number.

131858809848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131858809848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190175040000).

131858809848 is an abundant number, since it is smaller than the sum of its proper divisors (248491270152).

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

131858809848 is a wasteful number, since it uses less digits than its factorization.

131858809848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80346 (or 80336 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 63.

The spelling of 131858809848 in words is "one hundred thirty-one billion, eight hundred fifty-eight million, eight hundred nine thousand, eight hundred forty-eight".