1000001000909 has 8 divisors (see below), whose sum is σ = 1010262837240. Its totient is φ = 989746240000.

The previous prime is 1000001000819. The next prime is 1000001000941. The reversal of 1000001000909 is 9090001000001.

It can be written as a sum of positive squares in 4 ways, for example, as 358864496809 + 641136504100 = 599053^2 + 800710^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000001000909 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 (1000001080909) 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, 1484504 + ... + 2050305.

It is an arithmetic number, because the mean of its divisors is an integer number (126282854655).

Almost surely, 2^{1000001000909} is an apocalyptic number.

It is an amenable number.

1000001000909 is a deficient number, since it is larger than the sum of its proper divisors (10261836331).

1000001000909 is a wasteful number, since it uses less digits than its factorization.

1000001000909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537711.

The product of its (nonzero) digits is 81, while the sum is 20.

The spelling of 1000001000909 in words is "one trillion, one million, nine hundred nine", and thus it is an aban number.