9191009100013 has 4 divisors (see below), whose sum is σ = 9898009800028. Its totient is φ = 8484008400000.

The previous prime is 9191009100001. The next prime is 9191009100017. The reversal of 9191009100013 is 3100019001919.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3274351773289 + 5916657326724 = 1809517^2 + 2432418^2 .

It is a cyclic number.

It is not a de Polignac number, because 9191009100013 - 2⁹ = 9191009099501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9191009100017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353500349988 + ... + 353500350013.

It is an arithmetic number, because the mean of its divisors is an integer number (2474502450007).

Almost surely, 2^{9191009100013} is an apocalyptic number.

It is an amenable number.

9191009100013 is a deficient number, since it is larger than the sum of its proper divisors (707000700015).

9191009100013 is a wasteful number, since it uses less digits than its factorization.

9191009100013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707000700014.

The product of its (nonzero) digits is 2187, while the sum is 34.

The spelling of 9191009100013 in words is "nine trillion, one hundred ninety-one billion, nine million, one hundred thousand, thirteen".