87443888832 has 84 divisors (see below), whose sum is σ = 251287086960. Its totient is φ = 29072957952.

The previous prime is 87443888821. The next prime is 87443888863. The reversal of 87443888832 is 23888834478.

87443888832 is a `hidden beast` number, since 8 + 7 + 443 + 88 + 88 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 87443888832.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 28933 + ... + 419195.

It is an arithmetic number, because the mean of its divisors is an integer number (2991512940).

Almost surely, 2^87443888832 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 87443888832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125643543480).

87443888832 is an abundant number, since it is smaller than the sum of its proper divisors (163843198128).

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

87443888832 is a wasteful number, since it uses less digits than its factorization.

87443888832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390670 (or 390657 counting only the distinct ones).

The product of its digits is 66060288, while the sum is 63.

The spelling of 87443888832 in words is "eighty-seven billion, four hundred forty-three million, eight hundred eighty-eight thousand, eight hundred thirty-two".