9985085952 has 80 divisors (see below), whose sum is σ = 26631128832. Its totient is φ = 3324579840.

The previous prime is 9985085951. The next prime is 9985085959. The reversal of 9985085952 is 2595805899.

It is not an unprimeable number, because it can be changed into a prime (9985085951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1565073 + ... + 1571439.

Almost surely, 2^9985085952 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 9985085952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13315564416).

9985085952 is an abundant number, since it is smaller than the sum of its proper divisors (16646042880).

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

9985085952 is a wasteful number, since it uses less digits than its factorization.

9985085952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7409 (or 7393 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 60.

The square root of 9985085952 is about 99925.4019356440. The cubic root of 9985085952 is about 2153.3631123905.

The spelling of 9985085952 in words is "nine billion, nine hundred eighty-five million, eighty-five thousand, nine hundred fifty-two".