10919191009 has 8 divisors (see below), whose sum is σ = 11000228960. Its totient is φ = 10838188800.

The previous prime is 10919190871. The next prime is 10919191013. The reversal of 10919191009 is 90019191901.

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 10919191009 - 2²³ = 10910802401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10919194009) 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, 1196554 + ... + 1205644.

It is an arithmetic number, because the mean of its divisors is an integer number (1375028620).

Almost surely, 2^10919191009 is an apocalyptic number.

It is an amenable number.

10919191009 is a deficient number, since it is larger than the sum of its proper divisors (81037951).

10919191009 is an equidigital number, since it uses as much as digits as its factorization.

10919191009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17871.

The product of its (nonzero) digits is 6561, while the sum is 40.

The spelling of 10919191009 in words is "ten billion, nine hundred nineteen million, one hundred ninety-one thousand, nine".