9887655432 has 64 divisors (see below), whose sum is σ = 25157764800. Its totient is φ = 3237546240.

The previous prime is 9887655419. The next prime is 9887655443. The reversal of 9887655432 is 2345567889.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1209583 + ... + 1217729.

It is an arithmetic number, because the mean of its divisors is an integer number (393090075).

Almost surely, 2^9887655432 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 9887655432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12578882400).

9887655432 is an abundant number, since it is smaller than the sum of its proper divisors (15270109368).

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

9887655432 is a wasteful number, since it uses less digits than its factorization.

9887655432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9046 (or 9042 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The square root of 9887655432 is about 99436.6905724441. The cubic root of 9887655432 is about 2146.3363191405.

The spelling of 9887655432 in words is "nine billion, eight hundred eighty-seven million, six hundred fifty-five thousand, four hundred thirty-two".