9995181800 has 96 divisors (see below), whose sum is σ = 24700353600. Its totient is φ = 3750727680.

The previous prime is 9995181797. The next prime is 9995181803. The reversal of 9995181800 is 81815999.

9995181800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9995181797) and next prime (9995181803).

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (9995181803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378632 + ... + 404168.

It is an arithmetic number, because the mean of its divisors is an integer number (257295350).

Almost surely, 2^9995181800 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 9995181800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12350176800).

9995181800 is an abundant number, since it is smaller than the sum of its proper divisors (14705171800).

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

9995181800 is a wasteful number, since it uses less digits than its factorization.

9995181800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25675 (or 25666 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 50.

The square root of 9995181800 is about 99975.9060974193. The cubic root of 9995181800 is about 2154.0886178703.

The spelling of 9995181800 in words is "nine billion, nine hundred ninety-five million, one hundred eighty-one thousand, eight hundred".