9936013509 has 12 divisors (see below), whose sum is σ = 14622813036. Its totient is φ = 6499027392.

The previous prime is 9936013481. The next prime is 9936013523. The reversal of 9936013509 is 9053106399.

9936013509 is a `hidden beast` number, since 9 + 9 + 3 + 601 + 35 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9173425284 + 762588225 = 95778^2 + 27615^2 .

It is not a de Polignac number, because 9936013509 - 2¹¹ = 9936011461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9936013589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10414632 + ... + 10415585.

It is an arithmetic number, because the mean of its divisors is an integer number (1218567753).

Almost surely, 2^9936013509 is an apocalyptic number.

It is an amenable number.

9936013509 is a deficient number, since it is larger than the sum of its proper divisors (4686799527).

9936013509 is a wasteful number, since it uses less digits than its factorization.

9936013509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20830276 (or 20830273 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 45.

The square root of 9936013509 is about 99679.5541171809. The cubic root of 9936013509 is about 2149.8296969125.

The spelling of 9936013509 in words is "nine billion, nine hundred thirty-six million, thirteen thousand, five hundred nine".