9958998599 has 16 divisors (see below), whose sum is σ = 12108890880. Its totient is φ = 8072588160.

The previous prime is 9958998563. The next prime is 9958998607.

9958998599 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9958998599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9958998299) 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, 1397939 + ... + 1405044.

It is an arithmetic number, because the mean of its divisors is an integer number (756805680).

Almost surely, 2^9958998599 is an apocalyptic number.

9958998599 is a deficient number, since it is larger than the sum of its proper divisors (2149892281).

9958998599 is a wasteful number, since it uses less digits than its factorization.

9958998599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803030.

The product of its digits is 850305600, while the sum is 80.

The square root of 9958998599 is about 99794.7824237320. The cubic root of 9958998599 is about 2151.4861618713.

The spelling of 9958998599 in words is "nine billion, nine hundred fifty-eight million, nine hundred ninety-eight thousand, five hundred ninety-nine".