87831132424 has 128 divisors (see below), whose sum is σ = 198895656960. Its totient is φ = 35548305408.

The previous prime is 87831132421. The next prime is 87831132437. The reversal of 87831132424 is 42423113878.

It is not an unprimeable number, because it can be changed into a prime (87831132421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90827989 + ... + 90828955.

It is an arithmetic number, because the mean of its divisors is an integer number (1553872320).

Almost surely, 2^87831132424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87831132424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99447828480).

87831132424 is an abundant number, since it is smaller than the sum of its proper divisors (111064524536).

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

87831132424 is a wasteful number, since it uses less digits than its factorization.

87831132424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827 (or 1823 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The spelling of 87831132424 in words is "eighty-seven billion, eight hundred thirty-one million, one hundred thirty-two thousand, four hundred twenty-four".