9090909126 has 80 divisors (see below), whose sum is σ = 21975299808. Its totient is φ = 2792361600.

The previous prime is 9090909031. The next prime is 9090909127. The reversal of 9090909126 is 6219090909.

It is a happy number.

9090909126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090909127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1325466 + ... + 1332306.

Almost surely, 2^9090909126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9090909126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10987649904).

9090909126 is an abundant number, since it is smaller than the sum of its proper divisors (12884390682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9090909126 is a wasteful number, since it uses less digits than its factorization.

9090909126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7499 (or 7490 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 9090909126 is about 95346.2591085775. The cubic root of 9090909126 is about 2087.0640251086.

The spelling of 9090909126 in words is "nine billion, ninety million, nine hundred nine thousand, one hundred twenty-six".