9640853903 has 16 divisors (see below), whose sum is σ = 10349328576. Its totient is φ = 8957329920.

The previous prime is 9640853891. The next prime is 9640853921. The reversal of 9640853903 is 3093580469.

It is a cyclic number.

It is not a de Polignac number, because 9640853903 - 2⁶ = 9640853839 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9640853983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512423 + ... + 530903.

It is an arithmetic number, because the mean of its divisors is an integer number (646833036).

Almost surely, 2^9640853903 is an apocalyptic number.

9640853903 is a deficient number, since it is larger than the sum of its proper divisors (708474673).

9640853903 is a wasteful number, since it uses less digits than its factorization.

9640853903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19154.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 9640853903 is about 98187.8500783065. The cubic root of 9640853903 is about 2128.3277155338.

The spelling of 9640853903 in words is "nine billion, six hundred forty million, eight hundred fifty-three thousand, nine hundred three".