9791885945 has 16 divisors (see below), whose sum is σ = 11992147200. Its totient is φ = 7672751424.

The previous prime is 9791885941. The next prime is 9791885963. The reversal of 9791885945 is 5495881979.

It is a happy number.

9791885945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9791885945 - 2² = 9791885941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9791885941) 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, 127892 + ... + 189578.

It is an arithmetic number, because the mean of its divisors is an integer number (749509200).

Almost surely, 2^9791885945 is an apocalyptic number.

It is an amenable number.

9791885945 is a deficient number, since it is larger than the sum of its proper divisors (2200261255).

9791885945 is a wasteful number, since it uses less digits than its factorization.

9791885945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62344.

The product of its digits is 32659200, while the sum is 65.

The square root of 9791885945 is about 98953.9587131308. The cubic root of 9791885945 is about 2139.3841900769.

The spelling of 9791885945 in words is "nine billion, seven hundred ninety-one million, eight hundred eighty-five thousand, nine hundred forty-five".