9791825109 has 48 divisors (see below), whose sum is σ = 14654545920. Its totient is φ = 5767497120.

The previous prime is 9791825093. The next prime is 9791825117. The reversal of 9791825109 is 9015281979.

9791825109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9791825109 - 2⁴ = 9791825093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9791825119) 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 47 ways as a sum of consecutive naturals, for example, 23369302 + ... + 23369720.

It is an arithmetic number, because the mean of its divisors is an integer number (305303040).

Almost surely, 2^9791825109 is an apocalyptic number.

It is an amenable number.

9791825109 is a deficient number, since it is larger than the sum of its proper divisors (4862720811).

9791825109 is a wasteful number, since it uses less digits than its factorization.

9791825109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 51.

The square root of 9791825109 is about 98953.6513171697. The cubic root of 9791825109 is about 2139.3797594750.

The spelling of 9791825109 in words is "nine billion, seven hundred ninety-one million, eight hundred twenty-five thousand, one hundred nine".