10000009191 has 8 divisors (see below), whose sum is σ = 13617033984. Its totient is φ = 6524828600.

The previous prime is 10000009189. The next prime is 10000009193. The reversal of 10000009191 is 19190000001.

It is an interprime number because it is at equal distance from previous prime (10000009189) and next prime (10000009193).

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 10000009191 - 2¹ = 10000009189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000009193) 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, 35460885 + ... + 35461166.

It is an arithmetic number, because the mean of its divisors is an integer number (1702129248).

Almost surely, 2^10000009191 is an apocalyptic number.

10000009191 is a deficient number, since it is larger than the sum of its proper divisors (3617024793).

10000009191 is an equidigital number, since it uses as much as digits as its factorization.

10000009191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70922101.

The product of its (nonzero) digits is 81, while the sum is 21.

Adding to 10000009191 its reverse (19190000001), we get a palindrome (29190009192).

The spelling of 10000009191 in words is "ten billion, nine thousand, one hundred ninety-one".