9361728549 has 16 divisors (see below), whose sum is σ = 13894885440. Its totient is φ = 6229606320.

The previous prime is 9361728527. The next prime is 9361728553. The reversal of 9361728549 is 9458271639.

9361728549 is a `hidden beast` number, since 93 + 6 + 1 + 7 + 2 + 8 + 549 = 666.

It is not a de Polignac number, because 9361728549 - 2¹⁵ = 9361695781 is a prime.

It is a super-2 number, since 2×9361728549² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9361728495 and 9361728504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9361728149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305847 + ... + 335060.

It is an arithmetic number, because the mean of its divisors is an integer number (868430340).

Almost surely, 2^9361728549 is an apocalyptic number.

It is an amenable number.

9361728549 is a deficient number, since it is larger than the sum of its proper divisors (4533156891).

9361728549 is a wasteful number, since it uses less digits than its factorization.

9361728549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641457 (or 641451 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 9361728549 is about 96756.0259053667. The cubic root of 9361728549 is about 2107.5862089075.

The spelling of 9361728549 in words is "nine billion, three hundred sixty-one million, seven hundred twenty-eight thousand, five hundred forty-nine".