10000919191 has 4 divisors (see below), whose sum is σ = 10002736800. Its totient is φ = 9999101584.

The previous prime is 10000919177. The next prime is 10000919237. The reversal of 10000919191 is 19191900001.

10000919191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19191900001 = 331 ⋅57981571.

It is a cyclic number.

It is not a de Polignac number, because 10000919191 - 2⁷ = 10000919063 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 (10000919141) 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 3 ways as a sum of consecutive naturals, for example, 900526 + ... + 911563.

It is an arithmetic number, because the mean of its divisors is an integer number (2500684200).

Almost surely, 2^10000919191 is an apocalyptic number.

10000919191 is a deficient number, since it is larger than the sum of its proper divisors (1817609).

10000919191 is an equidigital number, since it uses as much as digits as its factorization.

10000919191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817608.

The product of its (nonzero) digits is 729, while the sum is 31.

The spelling of 10000919191 in words is "ten billion, nine hundred nineteen thousand, one hundred ninety-one".