9518966198 has 16 divisors (see below), whose sum is σ = 16412556960. Its totient is φ = 4055974656.

The previous prime is 9518966189. The next prime is 9518966221. The reversal of 9518966198 is 8916698159.

It is a super-2 number, since 2×9518966198² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9518966198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962683 + ... + 1967526.

It is an arithmetic number, because the mean of its divisors is an integer number (1025784810).

Almost surely, 2^9518966198 is an apocalyptic number.

9518966198 is a deficient number, since it is larger than the sum of its proper divisors (6893590762).

9518966198 is a wasteful number, since it uses less digits than its factorization.

9518966198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930391.

The product of its digits is 8398080, while the sum is 62.

The square root of 9518966198 is about 97565.1894786250. The cubic root of 9518966198 is about 2119.3202844955.

The spelling of 9518966198 in words is "nine billion, five hundred eighteen million, nine hundred sixty-six thousand, one hundred ninety-eight".