9900180813 has 8 divisors (see below), whose sum is σ = 13226176800. Its totient is φ = 6587152688.

The previous prime is 9900180779. The next prime is 9900180817. The reversal of 9900180813 is 3180810099.

It is a happy number.

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 9900180813 - 2⁶ = 9900180749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9900180817) 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, 3240183 + ... + 3243236.

It is an arithmetic number, because the mean of its divisors is an integer number (1653272100).

Almost surely, 2^9900180813 is an apocalyptic number.

It is an amenable number.

9900180813 is a deficient number, since it is larger than the sum of its proper divisors (3325995987).

9900180813 is a wasteful number, since it uses less digits than its factorization.

9900180813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6483931.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 9900180813 is about 99499.6523260257. The cubic root of 9900180813 is about 2147.2422412272.

The spelling of 9900180813 in words is "nine billion, nine hundred million, one hundred eighty thousand, eight hundred thirteen".