9985087385240 has 64 divisors (see below), whose sum is σ = 24599962116000. Its totient is φ = 3617442903040.

The previous prime is 9985087385213. The next prime is 9985087385249. The reversal of 9985087385240 is 425837805899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9985087385249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42062645 + ... + 42299364.

Almost surely, 2^{9985087385240} is an apocalyptic number.

It is an amenable number.

9985087385240 is an abundant number, since it is smaller than the sum of its proper divisors (14614874730760).

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

9985087385240 is a wasteful number, since it uses less digits than its factorization.

9985087385240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84362300 (or 84362296 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 68.

The spelling of 9985087385240 in words is "nine trillion, nine hundred eighty-five billion, eighty-seven million, three hundred eighty-five thousand, two hundred forty".