9958243682 has 16 divisors (see below), whose sum is σ = 15096200280. Its totient is φ = 4926210048.

The previous prime is 9958243679. The next prime is 9958243727. The reversal of 9958243682 is 2863428599.

9958243682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 99791²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 9958243681 + 1 = 99791^2 + 1^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 804194 + ... + 816482.

Almost surely, 2^9958243682 is an apocalyptic number.

9958243682 is a deficient number, since it is larger than the sum of its proper divisors (5137956598).

9958243682 is a wasteful number, since it uses less digits than its factorization.

9958243682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16565.

The product of its digits is 7464960, while the sum is 56.

The square root of 9958243682 is about 99791.0000050105. Note that the first 5 decimals coincide. The cubic root of 9958243682 is about 2151.4317978204.

The spelling of 9958243682 in words is "nine billion, nine hundred fifty-eight million, two hundred forty-three thousand, six hundred eighty-two".