9985900086 has 12 divisors (see below), whose sum is σ = 21636116892. Its totient is φ = 3328633356.

The previous prime is 9985900069. The next prime is 9985900109. The reversal of 9985900086 is 6800095899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277386096 + ... + 277386131.

It is an arithmetic number, because the mean of its divisors is an integer number (1803009741).

Almost surely, 2^9985900086 is an apocalyptic number.

9985900086 is an abundant number, since it is smaller than the sum of its proper divisors (11650216806).

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

9985900086 is a wasteful number, since it uses less digits than its factorization.

9985900086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554772235 (or 554772232 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 9985900086 is about 99929.4755615179. The cubic root of 9985900086 is about 2153.4216356217.

The spelling of 9985900086 in words is "nine billion, nine hundred eighty-five million, nine hundred thousand, eighty-six".