9640556674 has 16 divisors (see below), whose sum is σ = 17245219968. Its totient is φ = 3952029312.

The previous prime is 9640556671. The next prime is 9640556683. The reversal of 9640556674 is 4766550469.

It is a happy number.

9640556674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9640556671) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14969487 + ... + 14970130.

It is an arithmetic number, because the mean of its divisors is an integer number (1077826248).

Almost surely, 2^9640556674 is an apocalyptic number.

9640556674 is a deficient number, since it is larger than the sum of its proper divisors (7604663294).

9640556674 is a wasteful number, since it uses less digits than its factorization.

9640556674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29939649.

The product of its (nonzero) digits is 5443200, while the sum is 52.

The square root of 9640556674 is about 98186.3364934246. The cubic root of 9640556674 is about 2128.3058430860.

The spelling of 9640556674 in words is "nine billion, six hundred forty million, five hundred fifty-six thousand, six hundred seventy-four".