87231687424 has 36 divisors (see below), whose sum is σ = 198997291024. Its totient is φ = 37385008128.

The previous prime is 87231687421. The next prime is 87231687437. The reversal of 87231687424 is 42478613278.

It is a super-3 number, since 3×87231687424³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (87231687421) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24337407 + ... + 24340990.

Almost surely, 2^87231687424 is an apocalyptic number.

It is an amenable number.

87231687424 is an abundant number, since it is smaller than the sum of its proper divisors (111765603600).

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

87231687424 is an equidigital number, since it uses as much as digits as its factorization.

87231687424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48678420 (or 48678406 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 52.

The spelling of 87231687424 in words is "eighty-seven billion, two hundred thirty-one million, six hundred eighty-seven thousand, four hundred twenty-four".