9940945603 has 4 divisors (see below), whose sum is σ = 9941334120. Its totient is φ = 9940557088.

The previous prime is 9940945591. The next prime is 9940945633. The reversal of 9940945603 is 3065490499.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9940945603 - 2⁵ = 9940945571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9940945633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152950 + ... + 208027.

It is an arithmetic number, because the mean of its divisors is an integer number (2485333530).

Almost surely, 2^9940945603 is an apocalyptic number.

9940945603 is a deficient number, since it is larger than the sum of its proper divisors (388517).

9940945603 is a wasteful number, since it uses less digits than its factorization.

9940945603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388516.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 9940945603 is about 99704.2907953314. The cubic root of 9940945603 is about 2150.1853529042.

The spelling of 9940945603 in words is "nine billion, nine hundred forty million, nine hundred forty-five thousand, six hundred three".