10009181909091 has 8 divisors (see below), whose sum is σ = 13356687936784. Its totient is φ = 6667231910400.

The previous prime is 10009181909063. The next prime is 10009181909159. The reversal of 10009181909091 is 19090918190001.

It is a happy number.

10009181909091 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 not a de Polignac number, because 10009181909091 - 2²³ = 10009173520483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10009181909091.

It is not an unprimeable number, because it can be changed into a prime (10009181909491) 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, 1389003046 + ... + 1389010251.

It is an arithmetic number, because the mean of its divisors is an integer number (1669585992098).

Almost surely, 2^{10009181909091} is an apocalyptic number.

10009181909091 is a deficient number, since it is larger than the sum of its proper divisors (3347506027693).

10009181909091 is a wasteful number, since it uses less digits than its factorization.

10009181909091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778014501.

The product of its (nonzero) digits is 52488, while the sum is 48.

The spelling of 10009181909091 in words is "ten trillion, nine billion, one hundred eighty-one million, nine hundred nine thousand, ninety-one".