9815999730193 has 8 divisors (see below), whose sum is σ = 10688928926400. Its totient is φ = 8978700297168.

The previous prime is 9815999730191. The next prime is 9815999730209. The reversal of 9815999730193 is 3910379995189.

It is a happy number.

9815999730193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9815999730193 - 2¹ = 9815999730191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9815999730191) 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, 8907440221 + ... + 8907441322.

It is an arithmetic number, because the mean of its divisors is an integer number (1336116115800).

Almost surely, 2^{9815999730193} is an apocalyptic number.

It is an amenable number.

9815999730193 is a deficient number, since it is larger than the sum of its proper divisors (872929196207).

9815999730193 is a wasteful number, since it uses less digits than its factorization.

9815999730193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17814881591.

The product of its (nonzero) digits is 148803480, while the sum is 73.

The spelling of 9815999730193 in words is "nine trillion, eight hundred fifteen billion, nine hundred ninety-nine million, seven hundred thirty thousand, one hundred ninety-three".