9090000909 has 24 divisors (see below), whose sum is σ = 14465471904. Its totient is φ = 5454540000.

The previous prime is 9090000901. The next prime is 9090000911.

9090000909 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9090000909 - 2³ = 9090000901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090000901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 444547 + ... + 464544.

It is an arithmetic number, because the mean of its divisors is an integer number (602727996).

Almost surely, 2^9090000909 is an apocalyptic number.

9090000909 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

9090000909 is a deficient number, since it is larger than the sum of its proper divisors (5375470995).

9090000909 is a wasteful number, since it uses less digits than its factorization.

9090000909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909209 (or 909206 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 36.

The square root of 9090000909 is about 95341.4962594987. The cubic root of 9090000909 is about 2086.9945208699.

It can be divided in two parts, 9090000 and 909, that multiplied together give a square (8262810000 = 90900²).

The spelling of 9090000909 in words is "nine billion, ninety million, nine hundred nine", and thus it is an aban number.