9090724909 has 16 divisors (see below), whose sum is σ = 10629031680. Its totient is φ = 7614270720.

The previous prime is 9090724871. The next prime is 9090725003. The reversal of 9090724909 is 9094270909.

It is not a de Polignac number, because 9090724909 - 2⁹ = 9090724397 is a prime.

It is a super-2 number, since 2×9090724909² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090721909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24774 + ... + 137095.

It is an arithmetic number, because the mean of its divisors is an integer number (664314480).

Almost surely, 2^9090724909 is an apocalyptic number.

It is an amenable number.

9090724909 is a deficient number, since it is larger than the sum of its proper divisors (1538306771).

9090724909 is a wasteful number, since it uses less digits than its factorization.

9090724909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162060.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 9090724909 is about 95345.2930615875. The cubic root of 9090724909 is about 2087.0499276821.

The spelling of 9090724909 in words is "nine billion, ninety million, seven hundred twenty-four thousand, nine hundred nine".