9699898818 has 32 divisors (see below), whose sum is σ = 19897073280. Its totient is φ = 3150611840.

The previous prime is 9699898787. The next prime is 9699898823. The reversal of 9699898818 is 8188989969.

It is a happy number.

It is a super-3 number, since 3×9699898818³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9699898818.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182896 + ... + 229892.

It is an arithmetic number, because the mean of its divisors is an integer number (621783540).

Almost surely, 2^9699898818 is an apocalyptic number.

9699898818 is an abundant number, since it is smaller than the sum of its proper divisors (10197174462).

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

9699898818 is a wasteful number, since it uses less digits than its factorization.

9699898818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47882.

The product of its digits is 161243136, while the sum is 75.

The square root of 9699898818 is about 98488.0643428431. The cubic root of 9699898818 is about 2132.6638200869.

The spelling of 9699898818 in words is "nine billion, six hundred ninety-nine million, eight hundred ninety-eight thousand, eight hundred eighteen".