10000000919091 has 4 divisors (see below), whose sum is σ = 13333334558792. Its totient is φ = 6666667279392.

The previous prime is 10000000919089. The next prime is 10000000919137. The reversal of 10000000919091 is 19091900000001.

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

It is not a de Polignac number, because 10000000919091 - 2¹ = 10000000919089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000000919011) 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, 1666666819846 + ... + 1666666819851.

It is an arithmetic number, because the mean of its divisors is an integer number (3333333639698).

Almost surely, 2^{10000000919091} is an apocalyptic number.

10000000919091 is a deficient number, since it is larger than the sum of its proper divisors (3333333639701).

10000000919091 is an equidigital number, since it uses as much as digits as its factorization.

10000000919091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333333639700.

The product of its (nonzero) digits is 729, while the sum is 30.

Adding to 10000000919091 its reverse (19091900000001), we get a palindrome (29091900919092).

The spelling of 10000000919091 in words is "ten trillion, nine hundred nineteen thousand, ninety-one".