87688471712 has 48 divisors (see below), whose sum is σ = 176928000480. Its totient is φ = 42757569792.

The previous prime is 87688471657. The next prime is 87688471753. The reversal of 87688471712 is 21717488678.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835214 + ... + 934322.

It is an arithmetic number, because the mean of its divisors is an integer number (3686000010).

Almost surely, 2^87688471712 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 87688471712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88464000240).

87688471712 is an abundant number, since it is smaller than the sum of its proper divisors (89239528768).

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

87688471712 is a wasteful number, since it uses less digits than its factorization.

87688471712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99805 (or 99797 counting only the distinct ones).

The product of its digits is 8429568, while the sum is 59.

The spelling of 87688471712 in words is "eighty-seven billion, six hundred eighty-eight million, four hundred seventy-one thousand, seven hundred twelve".