9436420845 has 12 divisors (see below), whose sum is σ = 16356462876. Its totient is φ = 5032757760.

The previous prime is 9436420823. The next prime is 9436420849. The reversal of 9436420845 is 5480246349.

9436420845 is a `hidden beast` number, since 9 + 436 + 4 + 208 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2683032804 + 6753388041 = 51798^2 + 82179^2 .

It is not a de Polignac number, because 9436420845 - 2⁶ = 9436420781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 209698241 = 9436420845 / (9 + 4 + 3 + 6 + 4 + 2 + 0 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 9436420845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9436420849) 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, 104849076 + ... + 104849165.

It is an arithmetic number, because the mean of its divisors is an integer number (1363038573).

Almost surely, 2^9436420845 is an apocalyptic number.

It is an amenable number.

9436420845 is a deficient number, since it is larger than the sum of its proper divisors (6920042031).

9436420845 is a wasteful number, since it uses less digits than its factorization.

9436420845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209698252 (or 209698249 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 9436420845 is about 97141.2417307912. The cubic root of 9436420845 is about 2113.1764742721.

The spelling of 9436420845 in words is "nine billion, four hundred thirty-six million, four hundred twenty thousand, eight hundred forty-five".