9645158945 has 16 divisors (see below), whose sum is σ = 11742690000. Its totient is φ = 7603974144.

The previous prime is 9645158921. The next prime is 9645158959. The reversal of 9645158945 is 5498515469.

9645158945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1411955776 + 8233203169 = 37576^2 + 90737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9645158945 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 445307 + ... + 466463.

It is an arithmetic number, because the mean of its divisors is an integer number (733918125).

Almost surely, 2^9645158945 is an apocalyptic number.

It is an amenable number.

9645158945 is a deficient number, since it is larger than the sum of its proper divisors (2097531055).

9645158945 is a wasteful number, since it uses less digits than its factorization.

9645158945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22484.

The product of its digits is 7776000, while the sum is 56.

The square root of 9645158945 is about 98209.7701096994. The cubic root of 9645158945 is about 2128.6444639884.

The spelling of 9645158945 in words is "nine billion, six hundred forty-five million, one hundred fifty-eight thousand, nine hundred forty-five".