9985861283 has 4 divisors (see below), whose sum is σ = 10064490240. Its totient is φ = 9907232328.

The previous prime is 9985861279. The next prime is 9985861289. The reversal of 9985861283 is 3821685899.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9985861283 - 2² = 9985861279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9985861289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39314288 + ... + 39314541.

It is an arithmetic number, because the mean of its divisors is an integer number (2516122560).

Almost surely, 2^9985861283 is an apocalyptic number.

9985861283 is a deficient number, since it is larger than the sum of its proper divisors (78628957).

9985861283 is a wasteful number, since it uses less digits than its factorization.

9985861283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78628956.

The product of its digits is 7464960, while the sum is 59.

The square root of 9985861283 is about 99929.2814094047. The cubic root of 9985861283 is about 2153.4188463779.

The spelling of 9985861283 in words is "nine billion, nine hundred eighty-five million, eight hundred sixty-one thousand, two hundred eighty-three".