1001819090909 has 8 divisors (see below), whose sum is σ = 1233008112000. Its totient is φ = 792648071856.

The previous prime is 1001819090837. The next prime is 1001819090957. The reversal of 1001819090909 is 9090909181001.

It is a happy number.

1001819090909 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 a cyclic number.

It is not a de Polignac number, because 1001819090909 - 2²⁸ = 1001550655453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001819090959) 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, 5504500409 + ... + 5504500590.

It is an arithmetic number, because the mean of its divisors is an integer number (154126014000).

Almost surely, 2^{1001819090909} is an apocalyptic number.

It is an amenable number.

1001819090909 is a deficient number, since it is larger than the sum of its proper divisors (231189021091).

1001819090909 is a wasteful number, since it uses less digits than its factorization.

1001819090909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009001019.

The product of its (nonzero) digits is 52488, while the sum is 47.

The spelling of 1001819090909 in words is "one trillion, one billion, eight hundred nineteen million, ninety thousand, nine hundred nine".