9997050218 has 16 divisors (see below), whose sum is σ = 15112880640. Its totient is φ = 4959575376.

The previous prime is 9997050197. The next prime is 9997050229. The reversal of 9997050218 is 8120507999.

It is a happy number.

It is a super-2 number, since 2×9997050218² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94655 + ... + 170157.

It is an arithmetic number, because the mean of its divisors is an integer number (944555040).

Almost surely, 2^9997050218 is an apocalyptic number.

9997050218 is a deficient number, since it is larger than the sum of its proper divisors (5115830422).

9997050218 is a wasteful number, since it uses less digits than its factorization.

9997050218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76021.

The product of its (nonzero) digits is 408240, while the sum is 50.

The square root of 9997050218 is about 99985.2500021878. The cubic root of 9997050218 is about 2154.2228321104. Note that the first 3 decimals are identical.

The spelling of 9997050218 in words is "nine billion, nine hundred ninety-seven million, fifty thousand, two hundred eighteen".