9904163745 has 32 divisors (see below), whose sum is σ = 18897887232. Its totient is φ = 4330763712.

The previous prime is 9904163741. The next prime is 9904163779. The reversal of 9904163745 is 5473614099.

It is not a de Polignac number, because 9904163745 - 2² = 9904163741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9904163694 and 9904163703.

It is not an unprimeable number, because it can be changed into a prime (9904163741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2048137 + ... + 2052966.

It is an arithmetic number, because the mean of its divisors is an integer number (590558976).

Almost surely, 2^9904163745 is an apocalyptic number.

It is an amenable number.

9904163745 is a deficient number, since it is larger than the sum of its proper divisors (8993723487).

9904163745 is a wasteful number, since it uses less digits than its factorization.

9904163745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101141.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 9904163745 is about 99519.6651170009. The cubic root of 9904163745 is about 2147.5301542583.

The spelling of 9904163745 in words is "nine billion, nine hundred four million, one hundred sixty-three thousand, seven hundred forty-five".