9901691058 has 32 divisors (see below), whose sum is σ = 22667158656. Its totient is φ = 2824714368.

The previous prime is 9901691057. The next prime is 9901691071. The reversal of 9901691058 is 8501961099.

9901691058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9901690998 and 9901691016.

It is not an unprimeable number, because it can be changed into a prime (9901691053) 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 15 ways as a sum of consecutive naturals, for example, 153091 + ... + 207942.

It is an arithmetic number, because the mean of its divisors is an integer number (708348708).

Almost surely, 2^9901691058 is an apocalyptic number.

9901691058 is an abundant number, since it is smaller than the sum of its proper divisors (12765467598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9901691058 is a wasteful number, since it uses less digits than its factorization.

9901691058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361698.

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 9901691058 is about 99507.2412339926. The cubic root of 9901691058 is about 2147.3514209495.

The spelling of 9901691058 in words is "nine billion, nine hundred one million, six hundred ninety-one thousand, fifty-eight".