9985445899 has 8 divisors (see below), whose sum is σ = 11731153392. Its totient is φ = 8379395040.

The previous prime is 9985445849. The next prime is 9985445989.

9985445899 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9985445899 - 2²⁹ = 9448574987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9985445809) 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, 34914004 + ... + 34914289.

It is an arithmetic number, because the mean of its divisors is an integer number (1466394174).

Almost surely, 2^9985445899 is an apocalyptic number.

9985445899 is a deficient number, since it is larger than the sum of its proper divisors (1745707493).

9985445899 is a wasteful number, since it uses less digits than its factorization.

9985445899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69828317.

The product of its digits is 167961600, while the sum is 70.

The square root of 9985445899 is about 99927.2029979825. The cubic root of 9985445899 is about 2153.3889872230.

The spelling of 9985445899 in words is "nine billion, nine hundred eighty-five million, four hundred forty-five thousand, eight hundred ninety-nine".