9378987585 has 48 divisors (see below), whose sum is σ = 16954816320. Its totient is φ = 4390516480.

The previous prime is 9378987571. The next prime is 9378987589. The reversal of 9378987585 is 5857898739.

It is not a de Polignac number, because 9378987585 - 2⁹ = 9378987073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9378987589) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104971 + ... + 172559.

It is an arithmetic number, because the mean of its divisors is an integer number (353225340).

Almost surely, 2^9378987585 is an apocalyptic number.

It is an amenable number.

9378987585 is a deficient number, since it is larger than the sum of its proper divisors (7575828735).

9378987585 is a wasteful number, since it uses less digits than its factorization.

9378987585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67666 (or 67637 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 69.

The square root of 9378987585 is about 96845.1732664050. The cubic root of 9378987585 is about 2108.8805772732.

The spelling of 9378987585 in words is "nine billion, three hundred seventy-eight million, nine hundred eighty-seven thousand, five hundred eighty-five".